Maharam Padua—Rabbi Meir Katzenellenbogen מהר"ם פדואה — רבי מאיר קצנלנבוגן

He studied in Prague under Rabbi Jacob Pollak, then moved to Italy and took the rabbinate of Padua after his father-in-law, Rabbi Abraham Minz. He held it until his death; he was also nominally rabbi of Venice.

The printing case, 5309. He prepared for the Bragadini press an edition of the Mishneh Torah with his own notes. The rival Giustiniani press promptly reprinted his work. He turned to his kinsman the Rema—Rabbi Moshe Isserles—who ruled that reprinting another's work is unfair competition and forbidden. It is one of the first rulings anywhere on a publisher's right in his own book.

It ended badly. The losing side denounced their rivals to the Christian censors—and a burning of the Talmud and other Jewish books followed. A quarrel between two printing houses turned into a disaster for everyone.

Sources give his year of birth two ways—1473 or 1482; the later one stands here, and it is approximate. He died in 5325.