Complex sentence: His father, Alaa al-Zayat, was a prominent doctor and professor of medicine, the personal physician to Anwar Sadat, and his grandfather, Ahmed Hassan al-Zayat, a leading intellectual and writer.
Split into simpler sentences: His father, Alaa al-Zayat, was a prominent doctor and professor of medicine, the personal physician to Anwar Sadat. His grandfather, Ahmed Hassan al-Zayat, was a leading intellectual and writer.