Borommarachathirat II

Borommarachathirat II, or Borom Rachathirat II (Thai: บรมราชาธิราชที่ ๒), also known as King Sam Phraya (Thai: เจ้าสามพระยา, RTGS: Chao Sam Phraya) (1386–1448), was a monarch of the Ayutthaya Kingdom who reigned in the early 15th century. He is noted in Thai historiography for his roles in administration and warfare, and is associated with a period of heightened Ayutthayan activity in mainland Southeast Asia. During his reign, Ayutthaya conducted campaigns against the Lanna Kingdom and Khmer polities, and later traditions link his rule to the capture and looting of Angkor in 1431. He also appears in accounts concerning the consolidation of royal authority and the management of the kingdom's political and military affairs.