The Nomarch
At the head of each nome stood a nomarch. The position of the nomarch was at times hereditary, while at others they were appointed by the pharaoh. Generally, when the national government was stronger, nomarchs were the king's appointed governors. When the central government was weaker, however – such as during foreign invasions or civil wars – individual nomes would assert themselves and establish hereditary lines of succession. Conflicts between these different hereditary nomarchies were common during, for example, the First Intermediate Period – a time that saw a breakdown in central authority lasting from the sixth and eleventh dynasties, until one of the local rulers was once again able to assert control over the entire country as pharaoh.
Read more about this topic: Nome (Egypt)