The second most ancient of Sri Lanka's kingdoms, Polonnaruwa was first declared the capital city by King Vijayabahu I, who defeated the Chola invaders in 1070 CE to reunite the country once more under a local leader. While Vijayabahu's victory and shifting of Kingdoms to the more strategic Polonnaruwa is considered significant, the real Polonnaruwa Hero of the history books is actually his grandson, Parakramabahu I. The city Polonnaruwa was also called as Jananathamangalam during the short Chola reign.
However, with the exception of his immediate successor, Nissankamalla I, all other monarchs of Polonnaruwa were slightly weak-willed and rather prone to picking fights within their own court. They also went on to form more intimiate matrimonial alliances with stronger South Indian Kingdoms, until these matrimonial links superseded the local royal lineage and gave rise to the Kalinga invasion by King Magha in 1214 and the eventual passing of power into the hands of a Pandyan King following the Arya Chakrawarthi invasion of Sri Lanka in 1284. The capital was then shifted to Dambadeniya.
Today the ancient city of Polonnaruwa remains one of the best planned archeological relic sites in the country, standing testimony to the discipline and greatness of the kingdom's first rulers.