Thực đơn
Baldwin_IV_thành_Jerusalem Tham khảoThực đơn
Baldwin_IV_thành_Jerusalem Tham khảoLiên quan
Baldwin IV thành Jerusalem Baldwin Lonsdale Baldwinella vivanus Baldwinella aureorubens Baldwin Park, California Baldwin, Iowa Baldwin City, Kansas Baldwinella Baldwyn, Mississippi Baldwin, WisconsinTài liệu tham khảo
WikiPedia: Baldwin_IV_thành_Jerusalem http://www.thepeerage.com/p823.htm#i8228 https://archive.org/details/isbn_0631192603