21 Sept: Feast St Sárán of Lessán in Slíab Callainn/Slieve Gallion, #Lissan parish, Co. #Derry & Cluain Dá Acra in Cheachair. Cheachair on Longford/Leitrim border (Pádraig Ó Riain)? Slieve Gallion easternmost of the Sperrin Mountains. Son of Tighernach. Described "the goodly gem" MartG #medievalsky