Henry of Burgundy and the Foundation of…

Henry of Burgundy and the Foundation of the County of Portugal (1093–1112 CE)

Henry of Burgundy, a younger son of Henry of Burgundy, grandson of Robert I, Duke of Burgundy, and brother to Hugh I and Eudes I, Dukes of Burgundy, had little chance of inheriting land or titles in France. Seeking fortune and status, he joined the Reconquista in the Iberian Peninsula, aiding King Alfonso VI of León and Castile in his campaigns against the Moors.

Marriage and the Creation of the County of Portugal

As a reward for his military service, Henry was granted the hand of Theresa, the illegitimate daughter of Alfonso VI, in 1093. With this marriage, Henry received the County of Portugal as dowry, at the time a fiefdom of the Kingdom of León.

Henry’s Final Campaign and Death (1112 CE)

During the turbulent civil war between Queen Urraca of León and her estranged husband, Alfonso I of Aragon, Henry found himself caught in the conflict. In 1112, he was besieged in Astorga by Alfonso I of Aragon, holding the city with the support of Urraca. However, he suffered fatal wounds during the siege and died on May 12, 1112.

The Regency of Theresa and the Rise of Afonso Henriques

Henry’s death left Theresa as regent for their three-year-old son, Afonso Henriques, who became the second Count of Portugal.

As a young man, Afonso Henriques would prove to be an energetic and ambitious leader, expanding his territory at the expense of the Muslims.

• In 1139, after achieving military successes, he would declare himself King of Portugal, breaking his vassalage to León.
• This led to open conflict with his mother, Theresa, as he sought to assert Portugal’s independence.

Henry’s legacy, though short-lived, laid the foundation for the eventual Kingdom of Portugal, which his son Afonso Henriques would fully establish as an independent monarchy.