Maelog was a 6th-century pre-congregational saint of Wales and a child of King Caw of Strathclyde.Rev Rice Rees, Welsh Saints or Primitive Christians usually considered to be Founders of Churches in Wales (Longman Rees Orme Brown and Green, 1836)

He was the patron Saint of Llanfaelog,J Douglas Davies, Saint Maelog: A Brief Long Life. (J Douglas Davies, 1995). where he built his church.

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