Complex sentence: By 516, tribal unrest broke out and several tribal elites fought for power, one of those elites was Joseph Dhu Nuwas or "Yousef Asa'ar" as mentioned in ancient south Arabian inscriptions.
Split into simpler sentences: By 516, tribal unrest broke out and several tribal elites fought for power. One of those elites was Joseph Dhu Nuwas or "Yousef Asa'ar" as mentioned in ancient south Arabian inscriptions.