Abū Bakr was the father-in-law of Prophet Muhammad. He was a trusted companion and adviser to Muhammad. He was one of the first people to accept Islam.
Following Muhammad’s death, Abū Bakr took over his political role, becoming the first Muslim Caliph. He ruled the Rashidun Caliphate, covering the Arabian Peninsula.
He is known to Sunni Muslims as al-Siddiq (The Truthful).
This photo shows his name in Arabic calligraphy on a wooden roundel from a mosque.
Text adapted from Simple English Wikipedia, Creative Commons Attribution-ShareAlike License 4.0.
Name of Abu Bakr in calligraphy on a wooden roundel, 19th century, Khalili Collection of Hajj and the Arts of Pilgrimage TXT 365b