Portia de Rossi and Francesca Gregorini
While Portia de Rossi is more recognized for her famous wife, Ellen DeGeneres, she did have a love life before getting married. The Australian-American actress dated Italian director Francesca Gregorini between 2001 and 2004, but no one outside her family knew she was a lesbian.
Barbara Bach is the mother of Francesca Gregorini, who is the step-daughter of Ringo Starr. This connection completely disintegrated when de Rossi met Ellen DeGeneres on stage at an award ceremony.