Complex sentence: Graun's population did not have such success, despite a willing ear of Antonio Segni who later became Italy's prime minister, and in total 163 homes and of cultivated land were submerged.
Split into simpler sentences: Graun's population did not have such success, despite the willing ear of Antonio Segni who later became Italy's prime minister. In total 163 homes and of cultivated land were submerged.