There are several links on the net to the Mathew family and the Welsh side of this family still survives today. The Irish branches died out a long time ago and the lands to my knowledge went to the Wade family and some of it was sold to Tommy Stack (showjumping). The family was Roman Catholic and descended from Elisabeth Poyntz of Iron Acton (England), who was also Roman Catholic. This family produced a nun (Nano Nagle) and a priest (Theobald Mathew, who created the Presentation Sisters and the Temperance Movement; the family was well and truly Catholic. Nano was the daughter of Ann Mathew, great granddaughter of Elisabeth Poyntz. Also, the surname was Mathew not Mathews and always has been way back hundreds of years to David Mathew of Llandaff, Glamorgan. I am not sure how Wades inherited the Mathew lands but I saw somewhere on the net it was through marriage, which would cause the Irish Mathew branch to become extinct. I am not connected to this family at all but love researching old Welsh families and hope this info might be of some help.