Castel-men

According to the Old English Dictionary:

castel-men

gen. -manna; pl. m. Castle-men; castellani :-- Ða castelmen ðe wǽron on Engla lande him togeánes cómon [MS. comen] the castle-men who were in England came against him, Chr. 1075; Erl. 213, 18. castel-men