Key Facts
- Duration
- 1070 – 1232 AD
- Capital
- Polonnaruwa
- Notable ruler
- Parakramabahu I (the Great)
- Successor state
- Kingdom of Dambadeniya (est. 1232)
- Currency
- Kahapana, struck in occupied Pandya Nadu
Imperial Zenith Metrics
Historical Trajectory
Phase I: Rise
The Kingdom of Polonnaruwa emerged as the dominant Sinhalese polity following the expulsion of Chola occupation, consolidating power across the island of Sri Lanka from 1070 onward. Under early rulers, the kingdom unified the island's fractured regions and established Polonnaruwa as its administrative and cultural center, replacing the ancient Rajarata capital of Anuradhapura as the seat of royal authority.
Phase II: Zenith
Under Parakramabahu I, the kingdom reached its zenith, unifying the entire island and projecting military power into South India by intervening in the Pandya civil war. Sinhalese forces alongside Vira Pandyan temporarily controlled Pandya Nadu, Tondi, Pasi, and Rameshwaram, with the Kahapana currency struck across occupied territories. Extensive construction projects and irrigation works marked this era of prosperity.
Phase III: Decline
Factionalism between Pandya and Kalinga royal bloodlines eroded central authority, enabling generals to install puppet rulers and queens such as Lilavati to reign multiple times. In 1212, Parakrama Pandyan seized the capital with foreign aid, and by 1215 Kalinga Magha's invasion devastated Polonnaruwa, prompting mass migration southward. Vijayabahu III subsequently established the Kingdom of Dambadeniya in 1232, ending Polonnaruwa's era.
Notable Imperial Reigns
Selected rulers mapping the empire’s trajectory