regencies were very frequent during the pharaonic era. the most famous ancient egyptian regent is probably hatshepsut, who initially served as regent for her young nephew thutmose iii before taking the throne herself and reigning for more than twenty years. nefertiti is also thought to have acted as regent at some point, although this has never been fully confirmed. coregencies were also very common, and aging monarchs often appointed their sons and heirs as coregents towards the end of their reigns.