Teresa Fernández Queen Consort Leon was born to Ansur Fernández.
In 956 King Ordoño III of Leon [aged 30] died. His brother Sancho [aged 24] succeeded I King Leon. Teresa Fernández Queen Consort Leon by marriage Queen Consort Leon.
In 961 [her son] Ramiro III King Leon was born to Sancho "Fat" I King Leon [aged 29] and Teresa Fernández Queen Consort Leon. He married in or before 981 Sancha Gómez Queen Consort Leon and had issue.
Sancho "Fat" I King Leon and Teresa Fernández Queen Consort Leon were married. He the son of Ramiro II King Leon and Adosinda Gutiérrez Osóriz Queen Consort Leon.