An early document which is silent concerning Patrick is the letter of Columbanus to Pope Boniface IV of about 613.
Tírechán writes, "I found four names for Patrick written in the book of Ultán, bishop of the tribe of Conchobar: holy Magonus (that is, "famous"); Succetus (that is, the god of war); Patricius (that is, father of the citizens); Cothirtiacus (because he served four houses of druids)."[REF] .