I whanau a Bahá'u'lláh ko Mírzá Ḥusayn-Alí Núrí (Persian) i te 12 o Noema 1817 (Muharram 2, 1233 AH), i Tehran, te taone nui o Persia, Iran o tenei ra. I whanau tana tupuna ki a Aperahama na roto i te wahine a Aperahama a Keturah, ki a Zoroaster, ki a Yazdgerd III, te kingi whakamutunga o te Emepaea Sassanid, me Jesse hoki. E ai ki te kaituhi Bahá'í John Able, e kii ana hoki nga Bahá'í ko Bahá'u'lláh te mea "i heke mai i te rua, mai i a Aperahama, i a Hara, i a Aperahama, i a Keturah".Ko tona whaea ko Kjihí Khum, ko tona papa ko Mírzá Mahmud Mahmud Mahmud Mahmud Mahmud Mahmud Mahmud Mahmud Mahmud Mahmud Mahmud Mahmud Mahmud Mahmud Mahmud Mahmud Mahmud Mahmud Mahmud Mahmud Mahmud Mahmud Mahmud Mahmud Mahmud Mahmud Mahmud Mahmud Mahmud Mahmud Mahmud Mahmud Mahmud Mahmud
Ko Mírzá Mihdí, ko Bahíyyih Khánum me `Abdu'l-Bahá