Erwan Vallerie ː Castro-Audren, 1198; Castro Audren, 1202; Castrum Audreni, 1212; Castro-Audrein, 1215; Castro Audrain, 1222; Castro Audroin, 1224; Castrum Audrini, 1269; Chastel-Audrein, 1288; Castro Audreni, 1371; Chateaulaudren, Chastelaudren, 1420; Castro Audren, Castel Audren, 1316