Complex sentence: Al Himyari also claims that Malta was repopulated around the year 1050 AD by "Arabic-speaking" people-that is around 40 years before the Arabs themselves were defeated by Count Roger of Normandy, who liberated Malta from the Arabs in 1091.
Split into simpler sentences: Al Himyari also claims that Malta was repopulated around the year 1050 by "Arabic-speaking" people. That is around 40 years before the Arabs themselves were defeated by Count Roger of Normandy, who liberated Malta from the Arabs in 1091.