Katherine Eunice Schwarzenegger Pratt (born December 13, 1989) is an American author, and the eldest child of actor and politician Arnold Schwarzenegger and broadcast journalist Maria Shriver.
Schwarzenegger was born and raised in Los Angeles, California. She is the eldest child of Austrian-born actor and politician Arnold Schwarzenegger and journalist and author Maria Shriver. She is of Irish and German descent through her maternal grandparents Eunice and Sargent Shriver. Eunice was a younger sister to President John F. Kennedy and Sargent was a U.S. Ambassador to France and the Democratic nominee for Vice President of the United States in the 1972 election.
She has a younger sister, Christina, and two younger brothers, Patrick and Christopher Schwarzenegger. Through her father, she also has a half-brother, Joseph Baena.