King Vikramabahu I
Reign: 1111–1132 CE
Kingdom: Ruhuna
Country: Sri Lanka
Vikramabahu I (1111–1132) governed for 21 years, consolidating Polonnaruwa's infrastructure. His reign involved irrigation expansion, monastic patronage, and administrative stabilization. He navigated internal succession disputes and regional power balancing, sustaining the restored Sinhalese kingdom's fragile equilibrium.