It'sFather's Dayfor dads everywhere June 15, including the most famous family in the world:The Trumps. PresidentDonald Trumpis a father of five, and two out of his three sons are dads in their own right. That makes the two-term president, who justcelebrated his 79th birthday, a grandfather as well. He just welcomed his11th grandchildwhen his daughter Tiffany Trump welcomed her first baby in May. So who is who in the Trump family tree? Here is what to know: More:Where does Barron Trump go to college, and did he get rejected by Harvard? What we know Ivana and Donald Trump, married from 1977 to 1992, have three kids together. Donald Trump Jr.(He has five children with his ex-wife Vanessa Trump.) Ivanka Trump(She is married to Jared Kushner with three kids.) Eric Trump(He is married to Lara Trump, and they have two kids.) Marla Maples and Donald Trump were married from 1993 until 1999, they have one daughter together. Their daughterTiffany Trump, married to Michael Boulos, just had her first baby in May. Melania Trumpand Donald Trump were married in 2005, and they have one child together: Barron Trump, 19, a rising sophomore at New York University's Stern School of Business Kai Madison Trump, eldest daughter of Donald Trump Jr. and his ex-wife Vanessa Trump, and the eldest grandchild of President Donald Trump Donald Trump III,eldest son of Donald Trump Jr. and Vanessa Trump Spencer Trump, son of Donald Trump Jr. and Vanessa Trump Tristan Trump, son of Donald Trump Jr. and Vanessa Trump Chloe Trump,daughter of Donald Trump Jr. and Vanessa Trump Arabella Kushner, daughter of Ivanka Trump and husband, former White House senior adviser Jared Kushner Joseph Kushner,son of Ivanka Trump and Jared Kushner Theodore "Theo" Kushner, son of Ivanka Trump and Jared Kushner Luke Trump, son of Eric Trump and "Fox News" host Lara Trump Carolina Trump, daughter of Eric Trump and Lara Trump Alexander Trump Boulos, son of Tiffany Trump and Michael Boulos Some of the president's sons and sons-in-law are also celebrating Father's Day. So is his father-in-law, Viktor Knavs, father of Melania Trump and grandfather to their only child, Barron Trump. The president's oldest son, Donald Trump Jr., is a vice president of the Trump Organization. He was formerly married toVanessa Trump, formerly engaged to the nominated ambassador to GreeceKimberly Guilfoyle, and now dating model and socialiteBettina Andersonof Palm Beach, Florida. Eric Trump is also the vice president of the Trump Organization. He is married to Lara Trump, who hosts a show on Fox News, "My View with Lara Trump." Jared Kushner has been married to Ivanka Trump since 2009. He served as a senior adviser to Trump in his first term. Michael Boulos, the 27-year-old married to Tiffany Trump, is a businessman of Lebanese descent, whose father is a self-proclaimed billionaire. Contributing: Sudiksha Kochi, USA TODAY Kinsey Crowley is the Trump Connect reporter for the USA TODAY Network. Reach her at kcrowley@gannett.com. Follow her on X and TikTok @kinseycrowley or Bluesky at @kinseycrowley.bsky.social. This article originally appeared on USA TODAY:Father's Day in the Trump family: Who is who in the family tree?