Monarchy of the United Kingdom which resulted in a Danish monarchy for one generation. The conquest of England in 1066 by William, Duke of Normandy, was crucial in terms of both political and social change. The new monarch continued the centralisation of power begun in the Anglo-Saxon period, while the Feudal System continued to develop. William was succeeded by two of his sons: William II, then Henry I. Henry made a controversial decision to name his daughter Matilda (his only surviving child) as his heir. Following Henry's death in 1135, one of William I's grandsons, Stephen, laid claim to the throne and took power with
Henry I of Castile Henry I of Castile Henry I of Castile (14 April 1204 – 6 June 1217) was king of Castile. He was the son of Alfonso VIII of Castile and Eleanor of England, Queen of Castile (daughter of Henry II of England and Eleanor of Aquitaine). In 1211 Henry became heir to the throne when his older brother Ferdinand suddenly died. When his father died in 1214 Henry was just 10 years old so the regency was assumed by Henry's older sister Berengaria of Castile, wife of Alfonso IX of Leon. In 1215 Henry married Mafalda of Portugal, daughter of Sancho