The construction of this royal palace started together with the founding of Bangkok in 1782,when King Rama I ascended to the Throne and founded a new dynasty. The king realized that the former capital of Thonburi (located on the other side of the river) was no longer suitable because of various reasons. For example,it was situated on the curve of the river where it was too vulnerable to any invading threat and water destruction. Secondly, the palace of Thonburi was built in the middle of two temples and was difficult to be extended. Therefore he decided to move the capital center across the river and founded Bangkok for a new capital.