Complex sentence: In 1510 one group of Friulan noblemen returning from Venice where they had asked greater measures for checking out the situation, was intercepted and being chased away by a group of armed peasants at the height of Zompicchia (the ambush of Malazumpicchia).
Split into simpler sentences: In 1510 one group of Friulan noblemen was returning from Venice where they had asked greater measures for checking out the situation. They were intercepted and chased away by a group of armed peasants at the height of Zompicchia (the ambush of Malazumpicchia).