Home» Monastic Sites» Down» Dunsy Island Monastery Killinchy in the lough Dunsy Island Monastery Killinchy in the lough Down About This Site early monastic site, founded by St Duinseach Historical Information Alternative Names: Oileán DúinsigheIlandushagh Other Sites in Down Burren Dominican Friars — from Newtownards — place of refuge, apparently after the Restoration Learn More Castleboy Preceptory Knights Hospitaller founded 1198 by Hugh de Lacy; dissolved c.1414; leased 1584 to George Alexander Learn More Downpatrick High Cross High Cross located in Down. Learn More Dundrum Preceptory Knights Templar castle purportedly built 1183 by John de Courcy; in their possession until 1313; granted to the prior of… Learn More