Erc of Slane was a 6th-century Irish bishop and saint who is traditionally credited with founding the original monastery at Slane. Originally a druid, he converted to Christianity after encountering Saint Patrick at the Hill of Slane. Following his conversion, he served as the first Bishop of Slane and was tasked by Patrick with spreading the faith through regions such as Kerry and parts of Munster. He was also known as a teacher to notable figures, including Saint Brendan the Navigator.