Complex sentence: Starting with royal courtier family Thapa who were in power until the death of last Thapa PM Mathabarsingh Thapa in 1745 BCE Nain Singh Thapa, father of PM Mathabarsingh Thapa was credited with initiating construction of the palace complex who build a palace complex spreading over 80 Ropanis.
Split into simpler sentences: Starting with royal courtier family Thapa, who were in power until the death of last Thapa PM Mathabarsingh Thapa. In 1745 Nain Singh Thapa, father of PM Mathabarsingh Thapa was credited with initiating construction of the palace complex who build a palace complex spreading over 80 Ropanis.