Katherine Schwarzenegger/Instagram;Getty Katherine Schwarzenegger Pratt honored her husband Chris Pratt and her dad Arnold Schwarzenegger with an Instagram post on Father's Day Chris welcomed his fourth child, his third with Katherine, in November 2024 "Happy Father's Day to these two amazing dads," Katherine wrote in the caption Katherine Schwarzenegger Prattis honoringChris Pratton his first Father's Day as a father of four. On Sunday, June 15, the children's book author, 35, shared a sweet tribute to her husband, 45, in honor of the special day. The couple sharethree children,Lyla Maria, 4,Eloise Christina, 3, andFord Fitzgerald, who they welcomed in November 2024. The Marvel star is also a father toson,Jack, 12, whom he shares with exAnna Faris. Katherine'sInstagrampost honored both Chris and her own dad,Arnold Schwarzenegger. "Happy Father's Day to these two amazing dads! I love you both," she wrote in the caption. Katherine Schwarzenegger/Instagram The tribute began with a red carpet photo of Katherine, Chris, Arnold and other members of the Schwarzenegger family. She also included a throwback photo of Arnold holding her in his arms when she was a toddler. The post continued with an intimate picture of Chris cradling a baby to his chest, a snap of the family coloring at a kitchen table and one of Chris and his two daughters with a horse. Chris showcased the same kind of love to his wifeon Mother's Day in May, during which he showcased a carousel of photos of Katherine onInstagram. Katherine Schwarzenegger/Instagram "How do moms do it? Seriously. It's like running a circus, a hospital, and a five-star kitchen all at once. Our kids hit the jackpot with you, and so did I. We love you. Happy Mother's Day, Chief!" he wrote. The couple have had a celebratory couple of months sincewelcoming their son, Ford, in November. "We are overjoyed to announce the birth of our son, Ford Fitzgerald Schwarzenegger Pratt. Mama and baby are doing well and Ford's siblings are thrilled by his arrival. We feel so blessed and grateful. Love, Katherine and Chris," the couple wrote in a jointInstagrampost on Nov. 11. Chris gave an update on his sonduring an appearance onJimmy Kimmel Live!in February. Katherine Schwarzenegger/Instagram "He's a really, really chill baby. He's sleeping. I sleep through the whole night, but Mama's breastfeeding so she's up every couple of hours but he is really chilled," he said of Ford at the time. "He's not colicky or anything; he's not super loud. He's got this look on his face at all times that I just call resting bewilderment face," Chris added. Never miss a story — sign up forPEOPLE's free daily newsletterto stay up-to-date on the best of what PEOPLE has to offer, from celebrity news to compelling human interest stories. His wife shared with PEOPLE back in May thatchanging a baby's diaper is the number one lessonshe learned as a boy mom. Read the original article onPeople