Brychan king of Brecknock, in the 5th century, is said to have been the father of twenty-four sons and twenty-five (or twenty-six) daughters, who are called "the third holy family of Britain." The fact is that Brecknock was at one time a great missionary centre, and numerous inscribed gravestones are still found there; and an incised cross at Llanspyddyd is still called Brychan's stone. The connecting various members of a tribe under the form of a genealogy is not uncommon. and the lists are valuable as showing the connection of the churches .in South Wales and the opposite coast of Cornwall. The practice of making such lists prevailed in the latter section, where "Brychan's children" only means the devotees who came from Wales.