He is known for ceding the title of Duke of Guimarães to Infante Duarte of Aviz, alongside some of the wealth and properties of the House of Braganza.

The Duke Teodósio I was an educated and refined man, a typical Renaissance prince.

Their first child, Jaime of Braganza, died without issue in 1578, in the Battle of Alcacer Quibir.

Media related to Teodosio I of Braganza at Wikimedia Commons

This biography of a member of the Portuguese royal family is a stub.