The actress sometimes known as the "Love Goddess" reached the height of her fame in the 1940's, but whose career was cut short by early onset Alzheimer's.
The Wikipedia Bio and a fantastic website devoted to the life of Rita Hayworth.
"Margarita Carmen Cansino was born in New York on October 17, 1918 into a family of dancers. Her father, Eduardo was a dancer as was his father before him. He immigrated from Spain in 1913. Rita's mother met Eduardo in 1916 and were married the following year. Rita, herself, was trained as a dancer in order to follow in her family's footsteps. She joined her family on stage when she was 8 when her family was filmed in a movie called "La Fiesta" (1926). It was her first film appearance, albeit uncredited, but by no means was it to be her last."
From her Bio at IMDB.