Peter [Petrus] Seehausen [Seehusen de Lipczk] was a teacher and rector of the Thomasschule in the years 1434?, 1443, 1444, 1448, 1451, 1459?. As the Thomasschule rector Seehusen was closely connected with the university, becoming in 1455 rector, and in 1456 dekan (of the jurist faculty?).