Gresidua

Gresidua is the name of a Vel'Kari city which apparently once stood at the location of what is now Lake Ioris. According to Factus Formis, before his arrival in Westbrooke, the last time he was at that location, there was no lake, only a large crater where the city once stood.
It was known as 'The Fortress City', and its massive walls had stood the test of time for over two thousand years. 
During the conquest of Duloris by Praeteris, it was ruled by King Tiberius, who would be the last ruler of the ancient city.