Abd-ul-Aziz, ahbd'ul az eez', (1830-1876), thirty-second sultan of the Ottoman Empire, brother to Abd-ul-Medjid, whom he succeeded in June, 1861. He concluded treaties of commerce with France and England, both of which countries he visited in 1867. He was deposed in May, 1876, and in June of the same year he committed suicide, or more probably was assassinated.