Shoshenq C was the eldest son of the 22nd Dynasty pharaoh Osorkon I and queen Maatkare, the daughter of Psusennes II, and served as the High Priest of Amun at Thebes during his father"s reign.
Background
He has generally been equated with Heqakheperre Shoshenq II by the English Egyptologist Kenneth Kitchen and viewed as a short-lived co-regent to his father based on the Nile God British Museum statue 8 which identifies him as the son of Osorkon I and Queen Maatkare, daughter of Hor-Psusennes but this assumption is unproven. However, in the text of the statue, he is not given a specific throne name or prenomen, the use of a cartouche by a royal prince is attested in other periods of Egyptian history such as that of Amenmes, son of Thutmose I, and the documents depicts Shoshenq C as a simple High Priest of Amun on the side of the legs of the Nile God, rather than a king.
Career
Consequently, he was the most important official in Upper Egypt after the king himself. In the statue, Shoshenq C is called "the Master of the Two Lands" and the formula "beloved of Amun" is enclosed within a royal cartouche. In addition, none of Shoshenq C"s three wives used the title "King"s Wife" in any of their artifacts.
Finally, as Helen Jacquet-Gordon perceptively notes in her Bi Or 32(1975) Book Review of Kenneth Kitchen"s TIPE book, Shoshenq C"s third child—the Priest (and future king) Harsiese A does not assign royal titles to his father on a Bes-statue in Durham Museum which he dedicated to his father"s memory. fact.
We must therefore conclude that he (ie: Shoshenq C) had no such pretensions." All this evidence taken together suggest that the High Priest Shoshenq C was not a king in his own right and is not Shoshenq II, whose Royal tomb was found intact in Tanis. As an aside, king Shoshenq II did not include any mementos or objects which mention Osorkon I within his own tomb.
The High Priest Shoshenq C was probably succeeded in office by Iuwelot, who was also another son of Osorkon I. Shoshenq C"s son, Harsiese, later ruled over Thebes and Middle Egypt as king Harsiese A.
They consequently distinguish him entirely from king Heqakheperre Shoshenq II at Tanis.