Complex sentence: The Pizarro brothers led by Francisco and Diego de Almagro captured and conquered the Inca city of Cuzco later that year and imprisoned and executed the Inca emperor Atahualpa and stole the gold treasures from the city.
Split into simpler sentences: The Pizarro brothers led by Francisco and Diego de Almagro conquered the Inca city of Cuzco later that year. They imprisoned, executed the Inca emperor Atahualpa and stole the gold treasures from the city.