Complex sentence: Two kings lived in the palace namely Otumfuo Prempeh I and Otumfuo Sir Osei Agyeman Prempeh II, K.B.E. the 13th and 14th Kings of the Asante Nation before it was turned into a museum in 1995 after the new palace was built.
Split into simpler sentences: Two kings lived in the palace, namely Otumfuo Prempeh I and Otumfuo Sir Osei Agyeman Prempeh II, K.B.E., the 13th and 14th Kings of the Asante Nation. The old palace was converted into a museum in 1995 after the new palace was built.