One of the tragic episodes of Bahá’u’lláh's time in Adrianople concerned the actions of his half-brother Mírzá Yahyá. City officials as well as the Bábís increasingly revered Bahá’u’lláh, and Mírzá Yahyá was so jealous that he had someone poison Him. Bahá’u’lláh became extremely ill, and it took Him months to recuperate. The episode left Him with a tremor that showed in His handwriting to the end of His life.
