House of Braganza vassals, alongside numerous churches, orders, and institutions under its patronage. In 1603, Teodósio II married Ana de Velasco y Girón, daughter of Castilian Juan Fernández de Velasco, 5th Duke of Frías, and had four children with her. The Duke's first son and successor, João II, raise the House of Braganza to new heights of power, having launched the Portuguese Restoration War and been acclaimed King João IV of Portugal, thus installing the House as the ruling dynasty of Portugal. Teodósio II's second son, Duarte of Braganza, was made Lord of Vila do Conde and became a diplomat, serving at the
Teodósio I, Duke of Braganza Teodósio I, Duke of Braganza Dom Teodósio I of Braganza (; 1510 – 22 September 1563) was the 5th Duke of Braganza, among other titles. 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. He loved painting and sculpture. In 1542, he married his 1st cousin (1513–1558), daughter of his uncle Dinis, and had John I of Braganza. Their child, João I succeeded him as 6th Duke