Tuesday, March 11th, St. Aengus was a monk in Clonenagh, Co. Laois, who came to the monastery at Tallaght at the end of the eighth century during the abbacy of Muelruain to spend a period under his direction. He was renowned for his devotion to both foreign and native saints and composed two martyrologies. He returned to Clonenagh, where he became abbot and bishop. He died around 824.