Paser I was the Viceroy of Kush during the reigns of Ay

Ay

Ay was the penultimate Pharaoh of Ancient Egypt's 18th dynasty. He held the throne of Egypt for a brief four-year period , although he was a close advisor to two and perhaps three of the pharaohs who ruled before him and was the power behind the throne during Tutankhamun's reign...

 and likely Horemheb

Horemheb

Horemheb was the last Pharaoh of the 18th Dynasty from either 1319 BC to late 1292 BC, or 1306 to late 1292 BC although he was not related to the preceding royal family and is believed to have been of common birth.Before he became pharaoh, Horemheb was the commander in chief...

. Reisner mentions that the only datable inscriptions for Paser belong to the reign of Ay

Ay

Ay was the penultimate Pharaoh of Ancient Egypt's 18th dynasty. He held the throne of Egypt for a brief four-year period , although he was a close advisor to two and perhaps three of the pharaohs who ruled before him and was the power behind the throne during Tutankhamun's reign...

. The next known Viceroy however is Amenemopet

Amenemopet (Viceroy of Kush)

Amenemopet served as Viceroy of Kush during the reign of Seti I.Amenemopet was the son of the Viceroy of Kush named Paser and thus the grandson of the Viceroy Amenhotep-Huy and his wife Taemwadjsy....

, who is dated to the reign of Seti I

Seti I

Menmaatre Seti I was a Pharaoh of Ancient Egypt , the son of Ramesses I and Queen Sitre, and the father of Ramesses II...

. Hence it's possible that Paser I served during the reigns of Ay

Ay

Ay was the penultimate Pharaoh of Ancient Egypt's 18th dynasty. He held the throne of Egypt for a brief four-year period , although he was a close advisor to two and perhaps three of the pharaohs who ruled before him and was the power behind the throne during Tutankhamun's reign...

, Horemheb

Horemheb

Horemheb was the last Pharaoh of the 18th Dynasty from either 1319 BC to late 1292 BC, or 1306 to late 1292 BC although he was not related to the preceding royal family and is believed to have been of common birth.Before he became pharaoh, Horemheb was the commander in chief...

 (and maybe even Ramesses I

Ramesses I

Menpehtyre Ramesses I was the founding Pharaoh of Ancient Egypt's 19th dynasty. The dates for his short reign are not completely known but the time-line of late 1292-1290 BC is frequently cited as well as 1295-1294 BC...

?)

Paser was the son of the Viceroy Amenhotep called Huy who served during the reign of Tutankhamen. His mother was the Lady Taemwadsji.

Paser's titles include: Overseer of the Gold Lands of Amun, King’s Son of Kush, overseer of the Southern Lands. Overseer of the Lands of Amun in Ta-Set, Overseer of the Gold Lands. King's scribe.

Paser I is attested in:

• Gebel es-Shems, a stela of Paser records his name and titles and a small chamber ("petit speos") is dedicated to Paser. The stela is dated to the reign of Ay
  Ay
  Ay was the penultimate Pharaoh of Ancient Egypt's 18th dynasty. He held the throne of Egypt for a brief four-year period , although he was a close advisor to two and perhaps three of the pharaohs who ruled before him and was the power behind the throne during Tutankhamun's reign...
  
  .
• Sehel, an inscription mentioning Paser.
• The road from Assuan to Philae
  Philae
  Philae is an island in the Nile River and the previous site of an Ancient Egyptian temple complex in southern Egypt...
  
  , an inscription of his son Amenemopet
  Amenemopet
  Pharaoh Amenemope was the son of Psusennes I. Amenemope/Amenemopet's birth name or nomen translates as "Amun in the Opet Feast." He served as a junior co-regent at the end of his father's final years according to the evidence from a mummy bandage fragment. All surviving versions of his Manetho's...
  
   mentions Paser.
• A lintel from the temple of Aniba shows Paser adoring the cartouches of Horemheb
  Horemheb
  Horemheb was the last Pharaoh of the 18th Dynasty from either 1319 BC to late 1292 BC, or 1306 to late 1292 BC although he was not related to the preceding royal family and is believed to have been of common birth.Before he became pharaoh, Horemheb was the commander in chief...
  
  .