Prayurawongse

Somdet Chao Phraya Borom Maha Prayurawongse (Thai: สมเด็จเจ้าพระยาบรมมหาประยูรวงศ์; RTGS: Somdet Chao Phraya Borom Maha Prayurawong) or Tish Bunnag (Thai: ดิศ บุนนาค; RTGS: Dit Bunnak; 1788–1855) was a prominent political figure of Siam during the mid-19th century as a regent for Mongkut kingdom-wide. He led Siamese fleets in the Siamese-Vietnamese Wars and became a Somdet Chao Phraya — the highest title the nobility could attain, with honor equal to that of royalty.