Peribsen (also known as Seth-Peribsen and Ash-Peribsen) is the serekh name of an early Egyptian king who ruled during the 2nd dynasty. Unlike many other pharaohs of this dynasty, Peribsen is well-attested in the archaeological records. Peribsen's royal name is a subject of interest for Egyptologists and historians alike as it differs from the traditional practice with its connection to the deity Seth instead of Horus. This is still the subject of debate and investigations as to why Peribsen chose this name. The details of Peribsen's life remain obscure and the duration of his reign is unknown.
Read more about Seth-Peribsen: Name Sources, Name, Identity, Reign, Rulers of Lower and Upper Egypt