who won an oscar for a 1960 film in which she spoke only italian

Sophia Loren won the Oscar for the 1960 film Two Women (La Ciociara), and her performance was in Italian.

Why this is the answer

• The film is commonly cited as the first non-English-language performance to win an acting Oscar.

• Loren won Best Actress for that role.

Quick scoop

The actress was Sophia Loren.

TL;DR: Sophia Loren won the Academy Award for Best Actress for Two Women in 1962, for a performance spoken in Italian.