Last Updated on October 5, 2026 by Orlando Bloom
Quinten Post comes from a supportive Dutch family that played an important role in his unconventional journey from Amsterdam to college basketball in the United States and eventually the NBA. The Memphis Grizzlies center is particularly close to his father, Arjen Post, who played basketball himself and helped Quinten create a plan for reaching the highest level of the sport.
Post also has a younger sister and maintains a close relationship with his family in the Netherlands despite spending much of his adult life abroad. His personal life became more visible during his rise to the NBA through his relationship with former Boston College tennis player Marice Aguiar, who was beside him during his memorable 2024 NBA Draft experience.
Who Is Quinten Post’s Girlfriend?
Quinten Post’s publicly known girlfriend is Marice Aguiar, a former Boston College tennis player from San Juan, Puerto Rico.
The couple reportedly began dating in 2023 while both were associated with Boston College. Post was playing basketball for the Eagles, while Aguiar was one of the leading players on Boston College’s women’s tennis team.
Their relationship became more widely known during the 2024 NBA Draft. Aguiar was with Post when he learned that he had been selected with the 52nd overall pick, and footage of their emotional celebration attracted considerable attention online.
Post has also shared photographs and messages celebrating their relationship on social media. Dutch reporting continued to identify Aguiar as his partner during his rise in the NBA.
Who Is Marice Aguiar?
Marice Aguiar is originally from San Juan, Puerto Rico, and was an accomplished tennis player before becoming publicly known through her relationship with Quinten Post.
She attended Academia Maria Reina in Puerto Rico before joining Boston College.
Aguiar became one of the Eagles’ leading tennis players. During her college career, she competed primarily near the top of the singles lineup and also achieved national rankings in both singles and doubles.
She studied business accounting in Boston College’s Carroll School of Management.
Her own background as a high-level college athlete meant that she understood many of the demands Post faced while pursuing professional basketball.
Are Quinten Post and Marice Aguiar Married?
As of now, there has been no reliable public announcement confirming that Quinten Post and Marice Aguiar are married.
Although some websites have incorrectly referred to Aguiar as Post’s wife, more reliable reporting has generally described her as his girlfriend or partner.
Until the couple publicly announces a marriage, it is more accurate to identify Aguiar as Post’s longtime girlfriend.
Does Quinten Post Have Children?
As of now, Quinten Post does not have any publicly known children.
No reliable NBA, college or Dutch media source has reported that Post has a son or daughter.
His public family story has instead focused on his parents, younger sister and relationship with Marice Aguiar.
Who Are Quinten Post’s Parents?
Quinten Post was raised in Amsterdam, Netherlands. His father is Arjen Post, while his mother has maintained a private profile and her name has not been consistently published by authoritative sports sources.
Both parents were involved in Quinten’s upbringing, although his father has become considerably more visible because of the role basketball played in their relationship.
Dutch reporting has also indicated that Quinten’s parents separated when he was younger. Later interviews have referenced a stepmother on his father’s side.
Quinten Post’s Father: Arjen Post
Arjen Post is Quinten Post’s father and one of the most influential people behind his basketball career.
Arjen played basketball himself in the Netherlands and remained involved in the sport at the recreational and veteran level even after his son reached the NBA.
Quinten grew up accompanying his father to basketball practices and late-night games. Although basketball surrounded him from a young age, it was not originally Quinten’s favorite sport.
He preferred soccer during much of his childhood and played goalkeeper before eventually becoming more interested in basketball around the age of 11.
How Arjen Post Helped Quinten Become a Basketball Player
Quinten’s basketball journey nearly ended before it truly began.
During his teenage years, he temporarily stopped playing basketball. He was struggling with motivation and did not initially believe he could become an elite player.
His father did not force him to continue. Instead, Arjen allowed Quinten to make his own decisions while encouraging him to take responsibility for them.
Eventually, Quinten began playing with his father’s team. Those sessions helped him rediscover his enjoyment of basketball.
His physical development also changed dramatically. As a teenager, Post experienced a major growth spurt that eventually transformed him into a seven-footer.
Once Quinten became serious about basketball again, father and son began planning how he could progress beyond the Dutch youth system.
Quinten and Arjen Post Created a Plan for His Basketball Future
Arjen played a particularly important role once Quinten decided that he wanted to pursue basketball professionally.
Father and son developed a plan that involved Quinten proving himself in Amsterdam, gaining experience outside the Netherlands and eventually attempting to earn an opportunity in American college basketball.
Arjen contacted basketball programs abroad looking for opportunities for his son.
That process eventually helped Quinten join the youth setup associated with ALBA Berlin in Germany.
Playing in Germany forced him outside his comfort zone and gave him experience against stronger competition.
Afterward, Post had to decide whether to continue developing in Europe or move to the United States.
Arjen reportedly preferred another European route, but Quinten chose American college basketball.
Arjen Post and Quinten’s NBA Dream
Despite occasionally disagreeing over individual career decisions, Arjen remained one of his son’s strongest supporters.
Quinten has openly said that there were periods when his father believed in his NBA potential more than he believed in himself.
That confidence became important during difficult stages of his career.
Post initially played college basketball at Mississippi State but struggled to earn major playing time during his first two seasons.
He transferred to Boston College, where his career gradually changed.
By his final college season, Post had developed into one of the ACC’s most versatile centers and a legitimate NBA prospect.
Quinten Post’s Mother
Quinten Post’s mother has remained considerably more private than his father.
Reliable interviews confirm that she was involved throughout his childhood, but major basketball sources have generally not published her name.
Post has recalled discussing basketball with his mother during his teenage years, including during the period when he was considering quitting the sport.
When he no longer wanted to attend demanding Dutch youth national-team training sessions, he spoke with his mother about his frustration.
His parents ultimately allowed him to decide whether basketball was truly something he wanted to pursue.
That approach became important because Quinten eventually returned to the game voluntarily rather than because his parents forced him.
Are Quinten Post’s Parents Divorced?
Dutch reporting has stated that Quinten Post’s parents separated during his youth.
Post has occasionally discussed difficult periods during his teenage years when several things in his personal and school life were changing.
Later interviews have also referenced his stepmother when discussing major decisions involving his father.
Despite changes within the family, both sides of Post’s family remained part of his life as he pursued basketball internationally.
Who Are Quinten Post’s Siblings?
Quinten Post has at least one publicly documented younger sister.
Her name has not been consistently disclosed in reliable public sources, and she remains a private individual.
Quinten Post’s Younger Sister
Post has spoken affectionately about his younger sister during visits home to Amsterdam.
In a 2025 interview with Dutch broadcaster NOS, he mentioned spending time with his sister shortly after returning to the Netherlands following his NBA season.
The age difference between them appears to be considerable. A 2022 profile of Post also mentioned that his then-10-year-old sister had helped make a video connected to his basketball development.
Although she has remained outside the public spotlight, those stories demonstrate that the siblings have maintained a close relationship despite Quinten spending years living abroad.
Because his sister is not a public figure, her private details have generally remained out of sports coverage.
Quinten Post’s Grandparents
Quinten Post has also spoken publicly about his grandparents, particularly when discussing his love of chess.
His maternal grandfather, Kess Toorenaar, taught chess at a local elementary school and helped introduce Quinten to the game when he was young.
His paternal grandfather, Harry Post, also played chess at a local club.
Post began learning the game when he was approximately six to eight years old and continued playing as an adult.
His interest eventually followed him into the NBA, where he played chess with teammates and participated in basketball-related chess events.
Quinten Post’s Childhood in Amsterdam
Quinten Post was born on March 21, 2000, in Amsterdam, Netherlands.
His early sporting life looked very different from that of many future NBA centers.
He initially preferred soccer and spent time as a goalkeeper. That background contributed to his coordination and comfort handling a ball despite eventually growing to approximately seven feet tall.
Post did not begin concentrating seriously on basketball until later than many elite prospects.
Because he initially played perimeter positions while shorter, he developed dribbling and shooting skills before eventually growing into a center.
Those skills later became central to his NBA game.
How Quinten Post’s Family Supported His Move Abroad
Leaving the Netherlands represented a major step for Post and his family.
He first moved to Germany to develop his basketball career and then traveled much farther from home when he accepted an opportunity in American college basketball.
Post joined Mississippi State in 2019.
His first two college seasons were challenging because he received limited minutes, but his family encouraged him to continue pursuing opportunities.
He eventually transferred to Boston College in 2021.
The move proved to be one of the most important decisions of his career.
Quinten Post’s Career at Boston College
Post steadily developed at Boston College into one of the ACC’s leading big men.
His ability to combine seven-foot size with outside shooting made him an unusual matchup for opposing teams.
He was named the ACC Most Improved Player for the 2022-23 season.
During his final college campaign, Post earned Second-Team All-ACC and ACC All-Defensive Team honors.
He averaged 17.0 points, 8.1 rebounds and 2.9 assists per game during the 2023-24 season.
His improved performances ultimately convinced NBA teams that his combination of shooting, size and passing could translate to the professional game.
Quinten Post and Marice Aguiar at Boston College
Boston College became important to Post for reasons beyond basketball.
It was also where his relationship with Marice Aguiar developed.
Aguiar competed for Boston College’s women’s tennis program and was one of the strongest players in the Northeast Region during her college career.
Both understood the demands of competing in the ACC while balancing university responsibilities.
The couple remained together as Post moved from college basketball toward the NBA.
Quinten Post’s Family During the 2024 NBA Draft
Post entered the 2024 NBA Draft after completing his Boston College career.
His draft position remained uncertain deep into the second round.
Eventually, he was selected with the 52nd overall pick.
The Golden State Warriors acquired his draft rights, giving Post the opportunity to begin his NBA career with one of the league’s most recognizable franchises.
Marice Aguiar was alongside him when the selection became official, and their emotional reaction became one of the memorable personal moments from the later stages of the draft.
Members of Post’s family in the Netherlands also celebrated the achievement from home.
Arjen Post Watched His Son Play in the NBA
One particularly meaningful NBA moment occurred when Arjen traveled from the Netherlands to watch Quinten play in person.
Post explained that having his father inside the arena meant an enormous amount because Arjen had been involved in the basketball journey from the beginning.
The moment represented the realization of a goal father and son had discussed years earlier in Amsterdam.
From youth basketball practices and uncertainty about whether Quinten would even continue playing, the two eventually reached the point where Arjen could watch his son compete alongside some of the world’s best basketball players.
Quinten Post’s Move to the Memphis Grizzlies
Post spent his first two NBA seasons with the Golden State Warriors and established himself as a valuable stretch center.
His ability to shoot three-pointers while providing size in the frontcourt increased his value around the league.
During the 2026 offseason, the Memphis Grizzlies offered Post a three-year contract.
Golden State chose not to match the restricted free-agent offer, allowing Post to join Memphis.
The move began another chapter in a career that had already taken him from Amsterdam to Germany, Mississippi, Boston and California.
As of now, Post is a center for the Memphis Grizzlies.
Frequently Asked Questions About Quinten Post’s Family
Who is Quinten Post’s girlfriend?
Quinten Post’s publicly known girlfriend is Marice Aguiar, a former Boston College tennis player from San Juan, Puerto Rico.
Are Quinten Post and Marice Aguiar married?
There has been no reliable public announcement confirming that Quinten Post and Marice Aguiar are married as of now. She is more accurately described publicly as his girlfriend or partner.
Does Quinten Post have children?
No publicly verified reports indicate that Quinten Post has children as of now.
Who is Quinten Post’s father?
Quinten Post’s father is Arjen Post. He played basketball in the Netherlands and had a major influence on Quinten’s development and decision to pursue the NBA.
Who is Quinten Post’s mother?
Quinten Post’s mother has remained private, and her name has not been consistently published by authoritative basketball sources.
Are Quinten Post’s parents together?
Dutch reporting has indicated that Post’s parents separated while he was younger. Later interviews have also referenced his stepmother.
Does Quinten Post have siblings?
Yes. Quinten Post has at least one publicly documented younger sister.
What is Quinten Post’s sister’s name?
Reliable mainstream and basketball sources have not widely published the name of Post’s younger sister, so it is better not to rely on unverified claims about her identity.
Where was Quinten Post born?
Quinten Post was born in Amsterdam, Netherlands, on March 21, 2000.
Is Quinten Post Dutch?
Yes. Quinten Post is Dutch and grew up in Amsterdam before moving abroad to pursue basketball.
Did Quinten Post’s father play basketball?
Yes. Arjen Post played basketball and continued participating with a veteran team in the Netherlands. Quinten has credited his father with helping him rediscover basketball and develop a plan to pursue the NBA.
Who are Quinten Post’s grandparents?
Post has publicly identified maternal grandfather Kess Toorenaar and paternal grandfather Harry Post when discussing how he learned to play chess as a child.
Orlando Bloom is a sports journalist and analyst specializing in in-depth NBA coverage, tactical breakdowns, and advanced player analytics. With a passion for professional basketball, he covers everything from trade deadline maneuvers and Draft prospects to team strategies and league-wide trends. Combining detailed stat analysis with game context, Orlando delivers sharp insights and compelling stories for avid basketball fans and casual followers alike.
