 This work was dedicated to Bishop Aedh of Slébte, who was also the one who suggested the biography be written, and was the patron for the work.Muirchú's work is of little historical value in relation to the distant fifth century, but is a useful source for the time in which he lived and how Patrick was viewed in the seventh century.Muirchú was possibly a member of the Tuath Mochtaine clan, who resided on Mag Macha, the Armagh plain.