Lords of the Two Lands Series by Pauline Gedge

Seqenenra Tao, Prince of Weset, leads a revolt against the alien Hyksos pharaohs. His provincial aristocratic family is accustomed to a life of straitened gentility. But when the prince decides to rebel they must risk all, even life itself, to restore Egyptians and their gods to glory. The Hippopotamus Marsh begins a trilogy that brings to vivid life the passions and intrigues that ushered in the great Eighteenth Dynasty.

After his father's death, Kamose assumes command of the rebellion of the native princes against their overlords. He makes a perilous sweep up the river Nile toward the delta strongholds of the Hyksos. The costs are heavy in terms of men slain and villages destroyed. The long domination of alien men and their gods has been effectively challenged, but Kamose cannot lead the Egyptians to glory.

In the last volume of the trilogy, the youngest son of Sequenenra Tao assumes command of the natives armies to avenge the deaths of his father and bother and bring about the downfall of the foreign rulers, the Hyksos, whose alien dynasty has ruled Egypt for two hundred years.