Ahmad Sanjar
When Muhammad's son Mahmud II ascended the throne, Emir or Yazd Garshasp II fell into disgrace; slander about him spread to the court that made him lose confidence, and made Mahmud send a military force to Yazd where Garshasp was arrested and jailed in Jibal, while Yazd was granted to the royal cupbearer. Garshasp, however, escaped and returned to Yazd, where he requested protection from Ahmad Sanjar (Garshasp's wife was the sister of Ahmad).