Complex sentence: The most famous tekyeh is called the Tekyeh Dowlat, which was built by the King of Persia, Naser al-Din Shah Qajar and was situated in the capital of Iran, Tehran.
Split into simpler sentences: The most famous tekyeh is called the Tekyeh Dowlat. It was built by the King of Persia, Naser al-Din Shah Qajar and was situated in the capital of Iran, Tehran.