The
Ninth Dynasty of
ancient Egypt (notated
Dynasty IX) is often combined with
Dynasties VII,
VIII,
X and
XI (Thebes only) under the group title
First Intermediate Period. Dynasties IX and X date approximately from 2160 to 2025 BC. The dynasty that seems to have supplanted the 8th Dynasty is extremely obscure. The takeover by the rulers of Herakleopolis was violent and is reflected in
Manetho's description of Achthoes, the founder of the dynasty, as 'more terrible than his predecessors', who 'wrought evil things for those in all Egypt".