Hugronaphor was an Upper Egyptian of apparently Nubian origin who led Upper Egypt

Upper Egypt

Upper Egypt is the strip of land, on both sides of the Nile valley, that extends from the cataract boundaries of modern-day Aswan north to the area between El-Ayait and Zawyet Dahshur . The northern section of Upper Egypt, between El-Ayait and Sohag is sometimes known as Middle Egypt...

 in secession from the rule of Ptolemy IV Philopator

Ptolemy IV Philopator

Ptolemy IV Philopator , son of Ptolemy III and Berenice II of Egypt was the fourth Pharaoh of Ptolemaic Egypt...

 in 205 BC. No monuments are attested to this king but along with his successor Ankhmakis

Ankhmakis

Ankhmakis was the second Pharaoh of the rebel 35th dynasty, which controlled much of Upper Egypt during the reigns of Ptolemies IV and V...

  (also known as Chaonnophris or Ankhwennefer ) he held a large part of Egypt until 186 BC. A graffito on an Abydos temple wall giving him the Greek name Hyrgonaphor and dating to about 201 BC is an attestation to the extent of his influence. He appears to have died before 197 BC.

The graffito in the mortuary temple of Seti I at Abydos, one of the few documents remaining from his reign, is written in Egyptian using Greek letters, the oldest testimony of a development which would end in the Coptic script

Coptic alphabet

The Coptic alphabet is the script used for writing the Coptic language. The repertoire of glyphs is based on the Greek alphabet augmented by letters borrowed from the Demotic and is the first alphabetic script used for the Egyptian language...

 replacing the native Egyptian demotic

Demotic (Egyptian)

Demotic refers to either the ancient Egyptian script derived from northern forms of hieratic used in the Delta, or the stage of the Egyptian language following Late Egyptian and preceding Coptic. The term was first used by the Greek historian Herodotus to distinguish it from hieratic and...

.