The Sixteenth Dynasty of ancient Egypt (notated Dynasty XVI) was a dynasty of pharaohs that ruled the Theban region in Upper Egypt for 70 years.
This dynasty, together with Dynasties XV and XVII, was often combined under the group title, Second Intermediate Period (c. 1650–1580 BC), a period that saw the division of Upper and Lower Egypt between the pharaohs at Thebes and the Hyksos kings of the 15th dynasty based at Avaris.
Of the two chief versions of Manetho's Aegyptiaca, Dynasty XVI is described by the more reliableAfricanus (supported by Syncellus) as "shepherd [hyksos] kings", but by Eusebius as Theban.
Ryholt (1997), followed by Bourriau (2003), in reconstructing the Turin canon, interpreted a list of Thebes-based kings to constitute Manetho's Dynasty XVI, although this is one of Ryholt's "most debatable and far-reaching" conclusions. For this reason other scholars do not follow Ryholt and see only insufficient evidence for the interpretation of the Sixteenth Dynasty as Theban.
The continuing war against Dynasty XV dominated the short-lived 16th dynasty. The armies of the 15th dynasty, winning town after town from their southern enemies, continually encroached on the 16th dynasty territory, eventually threatening and then conquering Thebes itself. In his study of the second intermediate period, the Egyptologist Kim Ryholt has suggested that Dedumose I sued for a truce in the latter years of the dynasty, but one of his predecessors, Nebiryraw I, may have been more successful and seems to have enjoyed a period of peace in his reign.