Home» Monastic Sites» Waterford» Killongford Preceptory Killongford Preceptory Waterford Knights Hospitaller Uncertain About This Site By tradition Knights Templar also erroneously given as Knights of St John of Jerusalem Other Sites in Waterford (Site of) All Saints Well Marked similarly on the 1840 and 1926 eds of the OS 6-inch map, and situated on a level landscape with… Learn More Achad-crimthain Monastery Early monastic site, founded before 829; possibly located in County Waterford Learn More Achad-dagain Monastery Early monastic site, founded before 639 Learn More Ardmore Cathedral Early monastic site, Gaelic monks, founded in the 5th century by St Declan; diocesan cathedral 1152; see united with Lismore… Learn More