Frontier, Faith and Succession
Archived: 26 September 2026
Ireland in 1220 comprised competing lordships, Gaelic kingdoms, ecclesiastical communities and growing towns rather than a unified polity. Walter de Lacy’s attempted castle at Áth Liag was abandoned after Cathal Crobderg Ua Conchobair intervened, demonstrating limits to frontier expansion. Connacht’s succession remained insecure as a rival claimant sought western maritime support. At Derry, the successor to St Columba’s office prompted disputes resolved through local consent and Armagh’s arbitration. Papal intervention, church consecration and episcopal death illustrate religious connections and instability. Annalistic dating differs for several events. Trade, farming, crossings and markets linked regions, while conflict shaped movement, supplies and authority.
