Celebrity Parents Tessa Hilton Shares First Photos of Her and Barron's Baby Boy Caspian: 'Welcome to the World' Barron and Tessa Hilton welcomed their second baby, son Caspian, on Sept. 4 By Georgia Slater Georgia Slater Twitter Georgia Slater is a writer/reporter on the Parents team at PEOPLE. People Editorial Guidelines Published on September 7, 2022 01:16 PM Share Tweet Pin Email Trending Videos Photo: Tessa June Hilton/Instagram Tessa Hilton is introducing her baby boy to the world. On Tuesday, the 28-year-old shared the first photos of her and Barron Hilton's newborn son Caspian, whom they welcomed Sept. 4. Tessa posted a series of sweet pictures of their baby boy on Instagram, featuring a picture of Caspian with Tessa in the hospital as well as a picture of Caspian's hand wrapped around Barron's finger. She also included an adorable picture of their daughter Milou AlizĂŠe, 2, giving her baby brother a kiss on the head. "Welcome to the world our little boy 💙 Caspian Barron Hilton 💙 Born 09/04/2022," Tessa captioned the post. Earlier on Tuesday, a rep for the couple confirmed to PEOPLE exclusively that the son of hotel moguls Richard and Kathy Hilton and his wife Tessa welcomed their second baby. Never miss a story â sign up for PEOPLE's free daily newsletter to stay up-to-date on the best of what PEOPLE has to offer, from juicy celebrity news to compelling human interest stories. L: Caption . PHOTO: Tessa June Hilton/Instagram R: Caption . PHOTO: Tessa June Hilton/Instagram Barron Hilton and Wife Tessa Welcome Second Baby, Son Caspian: 'Over the Moon' "We are over the moon to welcome our little boy, Caspian Barron Hilton. Milou is so excited to be a big sister!" the couple said in a statement. The name Caspian means expansion and strength, added the rep. The couple exclusively confirmed to PEOPLE in February that they were expecting another baby together. "The baby is due at the end of summer, which will make Milou and baby exactly 2.5 years apart," the pair said at the time. Mark von Holden/Shutterstock Last month, sister-in-law Nicky Hilton Rothschild and her mother threw a beautiful baby shower for Tessa. Tessa shared photos from the intimate gathering at her mother-in-law's Malibu home. She smiled widely in pictures with family and friends, wearing a pink dress that hugged her bump as she posed around sea-themed decor and pink and blue flower arrangements. "The most beautiful baby shower filled with so much love đ," Tessa captioned an Instagram carousel of photos from the event. "We can't wait to meet you our little angel â¨." Barron, 32, and Tessa met in Saint BarthĂŠlemy in 2016 and tied the knot on the island in June 2018.