Fulk I FitzWarin ( born c. 1115, died 1170/1) (alias Fulke, Fouke, FitzWaryn, FitzWarren, Fitz Warine, etc., Latinised to Fulco Filius Warini, "Fulk son of Warin") was a powerful marcher lord seated at Whittington Castle in Shropshire in England on the border with Wales, and also at Alveston in Gloucestershire.
[1] A later medieval romance, Fouke le Fitz Waryn, claims that Fulk Fitzwarin was the son of a man named Warin de Meer (Modern French: Guarine de Meer), from Metz, in Lorraine.
[2][4] It has sometimes been claimed that Warin de Meer came to England during the reign of William the Conqueror (1066–1087).
However, he was not recorded as a tenant-in-chief – a feudal baron who was a direct vassal of the king – during William's reign.
[5] Fulk was rewarded by King Henry II (1154–1189) for his support of Henry's mother Empress Matilda in her civil war with King Stephen (1135–1154) and conferred to him the royal manor of Alveston in Gloucestershire and the manor of Blewbury in Berkshire.