The sophisticated entrance featuring two gatehouses with drawbridges and possibly portcullises was extremely advanced for its time, even by the standards of English fortifications.
Roedd y fynedfa soffistigedig, sy’n cynnwys dau borthdy gyda phontydd codi ac efallai porthcwlisiau, gryn dipyn o flaen ei hoes, hyd yn oed yn ôl safonau amddiffynfeydd y Saeson.