What key details about zagan pasha  can be extracted from the following bio?  Bio: zaganos pasha -lrb- ; fl . 1446 -- 1462 or 1469 -rrb- was an ottoman military commander , with the titles and ranks of `` kapudan pasha '' and the highest military rank , grand vizier , during the reign of sultan mehmed ii `` the conqueror '' . originally a christian who was conscripted and converted through the devşirme system , he became a muslim and rose through the ranks of the janissaries . he became one of the prominent military commanders of mehmed ii and a `` lala '' -- the sultan 's advisor , mentor , tutor , councillor , protector , all at once . he removed his rival , the previous grand vizier Çandarlı halil pasha the younger , amid the fall of constantinople . he later served as the governor of thessaly of macedonia .
A:
- monarch is mehmed ii- predecessor is Çandarlı halil pasha the younger yakup bey- branch is ottoman empire ottoman empire- blank is ethnicity- death date is 1462 or 1469- spouse is princess hatun sitti nefise hatun princess fatma hatun princess anna- office is grand vizier of the ottoman empire kapudan pasha- term end is 1456 1466- name is zaganos- death place is balıkesir , turkey , ottoman empire- successor is mahmud pasha angelovic mahmud pasha angelovic- data is unknown or serbian ; thought to be albanian , greek ,- nationality is ottoman- battles is fall of constantinople- allegiance is ottoman empire- term start is 1 june 1453 1463- religion is sunni islam- rank is kapudan -rrb- pasha -lrb- grand admiral ; 1463 -- 1466