Alan IV Fergant (died 13 October 1119) was Duke of Brittany, from 1084 until his abdication in 1112. He was also Count of Nantes and Count of Rennes. He was son of Hawise, Duchess of Brittany and Duke Hoel II. He was known as Alan Fergant, which in Breton means "Alan the Younger". Through his father, he was of the Cornwall dynasty, (Breton: Kerne dynasty)
A traditional rivalry between Brittany and Normandy continued at the close of the 11th centu...
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Alan IV Fergant (died 13 October 1119) was Duke of Brittany, from 1084 until his abdication in 1112. He was also Count of Nantes and Count of Rennes. He was son of Hawise, Duchess of Brittany and Duke Hoel II. He was known as Alan Fergant, which in Breton means "Alan the Younger". Through his father, he was of the Cornwall dynasty, (Breton: Kerne dynasty)
A traditional rivalry between Brittany and Normandy continued at the close of the 11th century. The Breton-Norman war of 1064–1065 was the result of William I of England's support of rebels in Brittany against Alan's grandfather, Conan II. Hostilities continued, and by 1086 Conan was forced to abandon his duchy after William I of England invasion.
Peace was reached that same year, and in the negotiations that followed Alan IV was forced into marriage with King William I's second daughter Constance. The marriage ceremonies may have taken place in Bayeux in Normandy. William of Malmesbury wrote that Constance was unpopular at the...
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