Кёпрюлю
In the 15th and especially 16th and 17th centuries, many Albanian converts to Islam migrated elsewhere within the Ottoman Empire and found careers in the Ottoman military and government. Some attained powerful positions in the Ottoman administration, which severely disadvantaged the Catholic community since conversion to Islam came with numerous upper-class affiliations. About 48 Albanians rose to the position of grand vizier, chief deputy to the sultan himself. In the second half of the 17th century, the Albanian Köprülü family provided 6 grand viziers, who fought against corruption, temporarily shored up eroding central government control over rapacious local beys, and won several military victories by max expanding the Ottoman states to the gates of Vienna and middle Ukraine..