Frumentius
Frumentius was born in the 4th Century in Tyre which is now Lebanon. Frumentius and his brother Edesius were shipwrecked in Eritrea. Everyone else on the ship was killed by the people there but Frumentius and Edesius were captured and sold into slavery. They became slaves of Ousanas, the King of the tribe of Axum. Ousanas freed them before his death and his widow hired them to tutor her son Ezana, King of Axum.