Ali
There is no such thing. Orthodox Christians have never had a Caliph.
The last Caliph died in Turkey in 1936, but he was not killed. He was merely deposed without a successor.
Yes.
'Ali was murdered by supporters of his Umayyed rivals in 661.
Hazrat Ali RAU was the last Rightly Guided Caliph. Hazrat Umar bin Abdul Aziz is also considered a Rightly Guided Caliph as he also rules justly.
Ali was the last of the Orthodox caliphs.
The first main 4 Caliphs (who are called the 4 orthodox caliphs) are:HAZRAT ABU BAKR SIDDIQUE (Raddi Allah Unho)The First Caliph of IslamHAZRAT UMAR FAROOQ (Raddi Allah Unho)The Second Caliph of IslamHAZRAT USMAN GHANI (Raddi Allah Unho)The Third Caliph of IslamHAZRAT ALI MURTZA (Raddi Allah Unho)The Fourth Caliph of Islam
Hazrat Ali RAU was the last Rightly Guided Caliph. Hazrat Umar bin Abdul Aziz is also considered a Rightly Guided Caliph as he also rules justly.
He is the fourth Caliph Ali Ibn Abou Taleb (Allah be pleased with him)
Muawiyah made the office of Caliph hereditary.
Caliph meaning the representative of God on earth
Mehmed VI Wahid ed-din, in Arabic محمد سادس Meḥmed-i sâdis, in Turkish: Mehmed Vahideddin or Mehmet Vahdettin) . He was born in 14 January 1861 and died in 16 May 1926. He was the 36th and last Sultan of the Ottoman Empire, reigning from 1918 to 1922. The last Islamic Caliph, however, was Abdülmecit II.