Simplify the following text for a Grade 4 native English-speaking person.
Original: Her children with Bogart are her son Stephen Humphrey Bogart ( born January 6 , 1949 ) , a news producer , documentary film maker and author ; and her daughter Leslie Bogart ( born August 23 , 1952 ) , a yoga instructor .
Simplified: Although well known as an actress herself , she also had fame as being the fourth wife of actor Humphrey Bogart . They stayed married until Bogart died in 1957 and had a son ; Stephen ( b. 1949 ) and a daughter , Leslie ( b. 1952 ) .