Reginald Fitzurse

Sir Reginald Fitzurse (1145–1173) was one of the four knights who murdered Thomas Becket in 1170. His name is derived from Fitz, the Anglo-Norman French term meaning "son of" and urse meaning a bear, likely the nom de guerre of an ancestor. Although he lived before the true age of heraldry, which developed in the early 13th century, his shield bore the cognizance of a bear, which is visible in a contemporary drawing portraying the murder of Becket.²