What happened on this land around c. 1100–1200 CE?

Decentralized political landscape with strong Persianate culture; trade and urban growth continue.
Rulers
Seljuk successors, regional atabegs and local dynasts
11th–13th centuries CE
Fragmentation and local rulers with Persian administrative structures.
Battles
Local dynastic wars and Crusader-era impacts on the west
12th century
Regional warfare, varying alliances with Turkic and Persian polities.