Siem Reap
In reality, surviving historic sources make this derivation appear unlikely, since they date the decline of Angkor to more than a century before this, when a military expedition from Ayutthaya captured and sacked Angkor Wat, which began a long period of vassal rule over Cambodia. The 1431 capture coincided with the decline of Angkor, though the reasons behind its abandonment are not clear. They may have included environmental changes and failings of the Khmer infrastructure.