and Upper Egypt during the final 3 Years of Osorkon II and the first 2 decades of Shoshenq III. The majority of Egyptologists today concede that king Osorkon III was the illustrious "Crown Prince and High Priest Osorkon B," son of Takelot II. A misunderstanding arose over his identity because in the Crown Prince's Chronicle, which was carved on the Bubastite Portal at Karnak, Osorkon dates his actions by both the regnal years of Takelot II (years 11 through 24) – with a short year 25 left unmentioned – and then by those of the Tanite king, Shoshenq III (from regnal years 22 through 29). While Kenneth Kitchen has interpreted this to mean that Shoshenq III succeeded Takelot II at Tanis, in fact Takelot II and Shoshenq III were likely close contemporaries because immediately after the death of his father in year 25 of Takelot II, Osorkon B started dating his activities to year 22, and not year 1, of Shoshenq III onwards. Consequently, there was never a two decade long break in Osorkon B's struggle to regain control of Thebes (from Year 1 to Year 22 of Sheshonq III) as Kitchen's chronology implies because year 25 of Takelot II is equivalent to year 22 of Sheshonq III. Osorkon B did not immediately ascend to his father's throne presumably because he was involved in a prolonged civil war with his rival Pedubast I and, later, Shoshenq VI, for control of Thebes. Instead, he merely dated his activities to the serving Dynasty 22 Pharaoh at Tanis: Shoshenq III. The Crown Prince Osorkon B was not outmaneuvered to the throne of Tanis by Shoshenq III because both men ruled over separate kingdoms with the 22nd Dynasty controlling Lower Egypt, and Takelot II/Osorkon B ruling over most of Upper Egypt from Herakleopolis Magna to Thebes, where they are monumentally attested. In 1983, a donation stela was discovered by Japanese excavators (Heian Museum 1983) at Tehna which reveals that Osorkon III was once a High Priest of Amun himself. This person can only be the well-known High Priest Osorkon B since no other Theban High Priests named Osorkon are known until the reign of Takelot III half a century later when the latter's son Osorkon F served in this office. Theban Uprising and Conflict In Year 11 of Takelot II, an insurrection began under Pedubast I whose followers challenged this king's authority at Thebes.