Urbina Franchi was born in Río Chico, Miranda, Venezuela, on 31 October 1914, to parents Ricardo Antonio Urbina Rodriguez (born 1871) and Juana Franchi Guevara. She had eight older siblings: Adelina del Carmen (1899), Emma Teresa (1901), Carlos Ricardo (1905), Mercedes (1906), Lourdes (1909), Alcira (1910), Luis Ricardo (1911), and Berta Ofelia (1913).

On 20 February 1941, she married Francisco Pérez Rivas (born 1907) in Santa Rosalía Parish in Caracas. The couple had a daughter, Diana.