Duke Albert IV of Bavaria-Munich (15 December1447 in Munich – 18 March1508 in Munich), (German: Albrecht IV., der Weise, Herzog von Bayern), from 1467 Duke of Bavaria-Munich, from 1503 Duke of the reunited Bavaria.
Albert was a son of Albert III, Duke of Bavaria and Anna of Brunswick-Grubenhagen-Einbeck. After the death of his older brother John IV, Duke of Bavaria he gave up his spiritual career and returned from Pavia to Munich. When his brothers Christoph and Wolfgang had resigned Albert became sole duke, but a new duchy Bavaria-Dachau was created from Bavaria-Munich for his brother Duke Sigismund in 1467. After Sigismund's death in 1501, it reverted to Bavaria-Munich.
To avoid any future division of Bavaria Albert edicted the everlasting succession of the firstborn prince in 1506. Nevertheless his oldest son and successor William IV, Duke of Bavaria had to share his power from 1516 onwards with his younger brother Louis X, Duke of Bavaria. After the death of Louis in 1545 the edict became effective until the end of Bavarian monarchy in 1918.