The 1924 Palace Law of Succession (Thai: กฏมณเฑียรบาลว่าด้วยการสืบราชสันตติวงศ์ พ.ศ. 2467) governs succession over the Throne of the Kingdom of Thailand. Established during the reign of King Vajiravudh, it attempted to systematically resolve previous succession controversies. The 1997 Constitution of Thailand relied on the law with regards to succession, but the 2006 Interim Constitution made no mention of succession, leaving it to "constitutional practice."