Guille Hastein
From theislandwiki
Guille Hastein, Bailiff of Jersey 1348-1351 and 1352
Guille Hastein was almost certainly a descendant of the earlier Bailiffs, Colin Hasteyn (1315) and Nicolas Hastein (1298), who some sources suggest may have been the same person, but no definite link has been substantiated.
Guille was Bailiff from 1348 to 1351, when he appears to have been replaced for a few months by Roger de Powderham, before being reinstated.