Athlone Castle Rises
Archived: 26 September 2026
In 1213, King John’s submission of England and Ireland to Pope Innocent III altered the lordship’s international status, while Henry of London became archbishop of Dublin and justiciar. Royal and settler forces campaigned in Mide, defeating Cormac Ó Máel Sechlainn’s allies and building castles at Athlone, Birr, Durrow and Kinnitty to control crossings and routes. Cormac nevertheless recovered influence, illustrating frontier instability. Ulster saw Gaelic feuds, Anglo-Norman attacks, church plundering, Coleraine Castle’s construction and Áed Ó Néill’s raids. Clerical deaths highlighted enduring ecclesiastical centres. Ireland remained politically plural, as castles, warfare, alliances and royal administration reshaped contested regions across Ireland.