Owini was born into a noble family from East Anglia. He served. He served princess Etheldreda, when Etheldreda joined her aunt Ebba at the monastery of Coldingham, Owini joined the monastery at Lastingham under Chad.
He journeyed there on foot, earning his keep as he went.The journey was difficult and dangerous. Sometime later he went back and placed wooden crosses along the route to serve as markers for pilgrims and travelers.
At Lastingham he chose to work the land rather than study. He beacame Chad's traveling companion and biographer following him to Lichfield, where he eventually died.