Trongsa, previously Tongsa, is one of the 20 dzongkhag (districts) comprising Bhutan. Traditionally, the King of Bhutan first becomes Penlop (governor) of Trongsa before being named Crown Prince and eventually King.
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Samdrup Jongkhar | Samtse | Sarpang | Thimphu | Trashigang | Trashiyangste | Trongsa | Tsirang | Wangdue Phodrang | Zhemgang