ʻAbdu'l-Bahá (əbˈdʊl_bəˈhɑː; Persian: عبد البهاء, 23 May 1844 – 28 November 1921), born ʻAbbás (عباس), was the eldest son of Baháʼu'lláh and served as head of the Baháʼí Faith from 1892 until 1921. ʻAbdu'l-Bahá was later canonized as the last of three "central figures" of the religion, along with Baháʼu'lláh and the Báb, and his writings and authenticated talks are regarded as sources of Baháʼí sacred literature.
He was born in Tehran to an aristocratic family. At the age of eight his father was imprisoned during a government crackdown on the Bábí Faith and the family's possessions were looted, leaving them in virtual poverty. His father was exiled from their native Iran, and the family went to live in Baghdad, where they stayed for nine years. They were later called by the Ottoman state to Istanbul before going into another period of confinement in Edirne and finally the prison-city of ʻAkká (Acre). ʻAbdu'l-Bahá remained a political prisoner there until the Young Turk Revolution