Note: Do not rely on this information. It is very old.
OEcolampadius, really John Hausschein or Heussgen, the German patronymic being classicised, was born at Weinsberg, in Wurtemberg, in 1482. Trained at Heidelberg, he became a pastor at Basle in 1515, and at once joined the party of reform. In 1518 he was transferred to Augsburg, and was for a while a monk, but four years later went back to Basle, where he openly preached the new doctrine, following Zwingli rather than Luther. He died in 1531. He was the author of a Greek grammar, commentaries on the prophets and Genesis, and a treatise, De Ritu Paschali.