Sri Jayawardenapura-Kotte also known as Kotte, is the administrative capital of Sri Lanka. It is located beyond the eastern suburbs of the commercial capital Colombo and is often called New Capital territory. The Parliament of Sri Lanka has been based there since the formal inauguration of its new building on 29 April 1982. Kotte (meaning 'Fortress') was the capital of the ancient Kingdom of Kotte from the 14th to the 16th centuries. Situated in a marshland, it was founded on the banks of the Diyawanna Oya river as a fortress against invasions from the Jaffna Kingdom of Arya Chakaravarthi in the 13th century by a local chieftain named Nissanka Alagakkonara. Alagakkonara is mentioned by Ibn Batuta as ruling in Kurunegala, but other sources indicate that he was the Bandara (Guardian) of Raigama Korale (county) in the modern Kalutara District. Arya Chakravarthy's army was held by Alagakkonara in front of Kotte, while he defeated the enemy's invasion fleet at Panadura to the south-west. Kotte was a jala durgha (water fortress), in the shape of a triangle, with the Diyawanna Oya marshes forming two long sides; along the shorter third (land) side a large moat (the 'inner moat') was dug. The city was fortified with ramparts of kabook or laterite rock. From the ramparts to the magnificent three storied buildings that housed the Kings Palace, Laterite and clay were the main raw material used in its construction. One of the places from which the laterite blocks were mined, could be seen even today inside the Ananda Sasthralaya (a local school) premises. The Portuguese arrived on the island in 1505 and were initially welcomed by the king. But they had militaristic and monopolistic intentions and gained control of the city by 1565. Failing to withstand repeated assaults by the forces of the neighbouring kingdom of Sitawaka, the city was abandoned by the Portuguese, who made Colombo their new capital. Like similar cities of that era, Sri Jayawardhanapura was built with security in mind. A rampart and moat protected the entire city. Traces of this moat and rampart are still visible today at certain places. Along parts of the rampart, encroachers have now built houses, garages and even toilets. The urbanisation of Kotte restarted in the 19th century. The archaeological remains were torn up and used as building materials (a process that continues) — some of it even ending up in the Victoria Bridge, across the Kelani River.