Sentence:  During his frequent stays at <WSD>Antioch</WSD>, Tigranes [king of Armenia], a self-styled king of kings, maintained a sumptuous court with a ceremonial of Achaemenid origin that Plutarch has described. 
Meaning of the word marked with <WSD> tags:  (Antioch on the Orontes), the most famous, in ancient Syria (modern-day Antakya in south-eastern Turkey)