Karl Jansen-Winkeln surmises in a footnote at the conclusion of Lange's paper that this new king should be dated to the first half of the 22nd Dynasty because his rule is attested in Upper and Lower Egypt. This is a logical deduction since Shoshenq III of the 22nd Dynasty lost effective control over Upper Egypt in his 8th year with the accession of Pedubast I at Thebes. Secondly, Lange notes that Tutkheperre Shoshenq is documented at the Temple of Bubastis where other early 22nd Dynasty monarchs such as Osorkon I and Osorkon II are well known for their building projects there. Thus, he should be placed somewhere between these two kings.