In 1571 be became Professor of mathematics (astronomy) at Wittenberg where he met Valentinus Otho and Joachim Rheticus.
In 1573 he came to Wittenberg, proposing to Johannes Praetorius an approximation of Pi as .
Otho | Valentinus | Edward Otho Cresap Ord | Valentinus Smalcius | Valentinus Otho | Valentinus (Gnostic) | John Otho Marsh, Jr. |