King Gajabahu II
Reign: 1132–1153 CE
Kingdom: Polonnaruwa
Country: Sri Lanka
Gajabahu II (1132–1153) ruled for 21 years, maintaining Polonnaruwa's hydraulic and monastic infrastructure. His reign focused on reservoir maintenance, temple sponsorship, and administrative routine. Chronicles note stability, enabling the groundwork for Parakramabahu I's subsequent grandeur.