Main (Thompson) Library location:North wing -- Second window. Johann Weissenburger (c.1465 – c.1531) was born in Nuremberg circa 1465 and matriculated at the University of Ingolstadt in 1480. In 1500, Weissenburger was ordained a priest in the parish of St. Lorenz in Bamberg and began printing two years later in Nuremberg. The first publication attributed to Weissenburger is the Prognosticon für 1503 und 1504 by Johann Stab. Shortly after, the city council of Nuremberg questioned his priestly intentions as a printer; as a result, Weissenburger moved to Landshut in 1513. Throughout his career, Weissenburger printed over one hundred books, including manuals for priesthood, devotionals, schoolbooks, and philosophical and theological texts. Among his major titles are Dialogus Philosophie de ritu omni verborum venuetate editus, Messahalah De Scientia Motvs Orbis, and De sacerdotum. This mark is composed of an orb-and-cross with a line extending upward from the tip of the cross to form part of a four-mark. Two parallel crossbars divide the orb horizontally. On the left of the symbol is a double-H – probably connected to the name Johann, or abbreviated as Hans; on the right is the printer's second initial, an uppercase W. In his full printing device, this mark would have appeared on a shield supported by two small angels. Weissenburger developed another device when he moved to Landshut.