Bernard Trevisan [?tre?vizan] (Bernard of Treviso, Bernardus Trevisanus) was a fictional Italian alchemist who lived from 1406 to 1490. His biography has been composed by editors and commentators of alchemical texts from the 16th century. It is said that he was born into a noble family in Padua and spent his entire life spending his family fortune in search of the Philosopher's stone. The mythical character emerged by a confusion with the alchemist called Bernard of Trier. A recent study founded a chronicle of his death in 1387. He has been identified with Eberhard I von der Mark (1305-1387), a law graduate and clergyman, who became chorbishop of Cologne. He resigned his positions in the Church to marry in 1346 with Maria de Looz-Agimont (ca.1336-1410), whose titles and territories counties were key points in feudal disputes involving Von der Marck family. From 1366 he was closely related to Kuno II von Falkenstein (ca.1320-1388), archbishop of Trier. [wikipedia]