Sydney Sweeney and Marilyn Monroe are related

A new study has discovered that Sydney Sweeney is related to Marilyn Monroe. Sweeney has been compared to Monroe on multiple occasions, and has leant into the similarities at red carpet events. At the premiere for The Housemaid in 2025, Sweeney wore a white dress that seemed inspired by the famous Monroe outfit from 1955’s The Seven Year Itch and many believed that her look for the 2025 Governor’s Ball was also inspired by Monroe. Earlier this year, she wore a vintage Ceil Chapman gown that resembled the one Monroe wore on the cover of a 1952 LIFE magazine. Sydney Sweeney clearly had Marilyn Monroe on her mood board when she got ready for the Governors Awards red carpet on Sunday. ✨ 📸: Getty; Shutterstock pic.twitter.com/VjkiWCgZOP — Page Six (@PageSix) November 17, 2025 And now genealogy company MyHeritage has completed a study that proves that Sydney Sweeney and Marilyn Monroe are related. According to their findings, the actors are ninth cousins, once removed. They share mutual ancestor Ezra Perry (1625–1689), who was an early English settler in Sandwich, Massachusetts. “People have always drawn parallels between Sydney Sweeney and Marilyn Monroe, but seeing their paths align on...