The Royal Burial Ground at Bukit Melawati is the resting ground for the 3 earlier Sultan of Selangor; Sultan Salehuddin (1766-1782), Sultan Ibrahim (1782-1826) and Sultan Muhammad (1826-1857)
The Penggawa Cannon is always wrapped in yellow cloth. It is situated in the burial grounds of Sultan Selangor. It was found at the edge of Buluh River, 12km to the south of Kuala Selangor on 23rd September 1966. Its original name is "Petoi Boga" which means White Princess.