Katherine Schwarzenegger

Katherine Eunice Schwarzenegger Pratt (born December 13, 1989) is an American author. She is the oldest child of actor and former Governor of California Arnold Schwarzenegger and broadcast journalist Maria Shriver.
Her granduncles were President John F. Kennedy, Robert F. Kennedy and Ted Kennedy because her grandmother Eunice Kennedy was their sister. 
She started dating actor Chris Pratt in June 2018. Schwarzenegger and Pratt announced their engagement on January 13, 2019. On June 8, 2019, they were married in Montecito, California.