Gilanshah

Gilanshah (Persian: شاه گیلان) was the last ruler of the Ziyarid dynasty from ca. 1087 to 1090. He was the son and successor of Keikavus. Little is known about Gilanshah; his kingdom was invaded by the Nizari Ismaili state in 1090, ending Ziyarid rule in Tabaristan.

Sources

• Madelung, W. (1975). "The Minor Dynasties of Northern Iran". In Frye, R. N. The Cambridge History of Iran, Volume 4: From the Arab Invasion to the Saljuqs. Cambridge: Cambridge University Press. pp. 198–249. ISBN 978-0-521-20093-6. 
• Bosworth, C. E. (1968). "The Political and Dynastic History of the Iranian World (A.D. 1000–1217)". In Frye, R. N. The Cambridge History of Iran, Volume 5: The Saljuq and Mongol periods. Cambridge: Cambridge University Press. pp. 1–202. ISBN 0-521-06936-X.