Alan IV, Duke of Brittany

Alan IV
Alan IV's seal
Duke of Brittany
Reign	1072–1112
Predecessor	Hoel II & Hawise
Successor	Conan III
Regent	Hoel II (1072–1084)
Born	c. 1063
Died	13 October 1119 Redon Abbey
Burial	Redon Abbey
Spouses	Constance of Normandy ​ ​ (m. 1086; died 1090)​ Ermengarde of Anjou ​ ​ (m. 1093)​
Issue	Conan III, Duke of Brittany Geoffrey Hawise, Countess of Flanders Brian Fitz Count (Illegitimate)
House	Cornouaille
Father	Hoel II, Duke of Brittany
Mother	Hawise, Duchess of Brittany

Alan IV (c. 1063 – 13 October 1119) was Duke of Brittany from 1072 until his abdication in 1112. He was also Count of Nantes (from c. 1103) and Count of Rennes. His parents were Duchess Hawise and Duke Hoel II.^[1] He is also known as Alan Fergant. Through his father, he was of the Breton House of Cornouaille dynasty (Breton: Kerne dynasty). He was the last Breton-speaking Duke of Brittany.^[2]