Surname: Gwilym | Name index 8 people Ann verch Gwilym Gruffudd Ap Gwilym * 1342 Gwenllian verch Gwilym Gwilym Ap Gwilym Hywel Ap Gruffudd Ap Gwilym Rhys Ap Gwilym Robin Ap Gruffudd Ap Gwilym * 1362 Thomas Ap Gruffudd Ap Gwilym Surname