Mírzá Muhammad-‘Alí Qazvíní was the sixteenth Letter of the Living. He was the son of Mullá ‘Abdu’l-Vahháb, a mujtahid (preeminent religious scholar) of Qazvin; cousin and brother-in-law of Táhirih, closely associated with her in Karbala; entrusted by her with a sealed letter and a verbal message to be delivered to the Promised One whom they both sought; present at Badasht; killed at Shaykh Tabarsí.
“Mírzá Muhammad-‘Alíy-i-Qazvíní” Bahá’í Encyclopedia Project. baha’i-encyclopedia-project.org
Baha’i World Centre Archives – Door to the House of the Báb