The older brother was Mírzá Muhammad-Husayn, given the title Mahbúbu's͟h-S͟huhadáʼ (Beloved of Martyrs). His brother was Mírzá Muhammad-Hasan, given the title Sultánu's͟h-S͟huhadaʼ (King of Martyrs). The latter was identified as one of the nineteen Apostles of Baháʼu'lláh.
