Mohammad Taghi Mesbah Yazdi
Yazdi is one powerful Ayatollah, by some considered the most influential of the clerics in the holy city of Quom. He is suspected of being behind two assasination attempts on Khatami, one when Khatami
was president and one later in Khatami's political career.
Yazdi is extremely conservative and isolationist, arguing in favour of total isolation of Iran from the West. He is also the spiritual advisor of Mahmoud Ahmadinejad.