Óengus of Tallaght

Who was Óengus of Tallaght?

Óengus mac Óengobann, better known as Saint Óengus of Tallaght or Óengus the Culdee, was an Irish bishop, reformer and writer, who flourished in the first quarter of the 9th century and is held to be the author of the Félire Óengusso and possibly the Martyrology of Tallaght.

Little of Óengus's life and career is reliably attested. The most important sources include internal evidence from the Félire, a later Middle Irish preface to that work, a biographic poem beginning Aíbind suide sund amne and the entry for his feast-day inserted into the Martyrology of Tallaght.