Several princes of Deheubarth ruled in medieval Kingdom of Ceredigion, including Creuddyn. Rhys ap Gruffydd's grandson Maelgwn Fychan (died 1257) battled for control of the area; Gwenllian (died 1254) died at Llanfihangel-y-Creuddyn. Either Maelgwn or his grandsons Llywelyn or Rhys may have been responsible for building the large 13th-century church which still stands today.Ymddiriedolaeth Archaeolegol Dyfed
