Ahmose called Si-Tayit was possibly the first Viceroy of Kush.
It is possible that the position was held by a son of Pharaoh Ahmose I

Ahmose I

Ahmose I was a pharaoh of ancient Egypt and the founder of the Eighteenth dynasty. He was a member of the Theban royal house, the son of pharaoh Tao II Seqenenre and brother of the last pharaoh of the Seventeenth dynasty, King Kamose...

 before Ahmose called Si-Tayit was appointed Viceroy, but there is no conclusive evidence for such a Viceroy.

Before Si-Tayit the power in Kush seems to have been in the hands of a dignitary named Hormeini, who was the mayor of Hierakonpolis.

Ahmose called Si-Tayit served as Viceroy under both Ahmose I

Ahmose I

Ahmose I was a pharaoh of ancient Egypt and the founder of the Eighteenth dynasty. He was a member of the Theban royal house, the son of pharaoh Tao II Seqenenre and brother of the last pharaoh of the Seventeenth dynasty, King Kamose...

 and Amenhotep I

Amenhotep I

Amenhotep I was the second Pharaoh of the 18th dynasty of Egypt. His reign is generally dated from 1526 to 1506 BC. He was born to Ahmose I and Ahmose-Nefertari, but had at least two elder brothers, Ahmose-ankh and Ahmose Sapair, and was not expected to inherit the throne...

. Early in the reign of Amenhotep I

Amenhotep I

Amenhotep I was the second Pharaoh of the 18th dynasty of Egypt. His reign is generally dated from 1526 to 1506 BC. He was born to Ahmose I and Ahmose-Nefertari, but had at least two elder brothers, Ahmose-ankh and Ahmose Sapair, and was not expected to inherit the throne...

, the position passed from Si-Tayit to his son Ahmose called Turo

Ahmose called Turo

Ahmose called Turo was Viceroy of Kush under Amenhotep I and Tuthmosis I. Ahmose called Turo was a son of Ahmose Si-tayit. Ahmose Turo's son Ahmose Patjenna would continue to serve the royal family during the reigns of Hatshepsut and Tuthmosis III....

. The position of Viceroy was not hereditary, and the position did not pass to Turo's son Patjenna.