King Narai built this Thai-European palace as a residence for foreign ambassadors. Greek diplomat and trader Constantine Phaulkon was its most famous resident. Phaulkon’s knowledge of European technology helped him gain a place in King Narai’s inner circle. However, jealous courtiers disliked his power and riches, and as Narai lay dying, Phaulkon was arrested and beheaded. The palace is across the street and northeast of Wat Sao Thong Thong.