[3] The Egyptologist Karl Jansen-Winkeln notes that an important graffito from the Temple of Abydos contains the complete titles of a king Tyetkheperre Setepenre Pasebakhaenniut Meryamun "who is simultaneously called the HPA (i.e., High Priest of Amun) and supreme military commander.

[5] The few contemporary attestations from his reign include the aforementioned graffito in Seti I's Abydos temple, an ostracon from Umm el-Qa'ab, an affiliation at Karnak and his presumed burial – which consists of a gilded coffin with a royal uraeus and a Mummy, found in an antechamber of Psusennes I's tomb at Tanis.

It is generally assumed that a Year 13 III Peret 10+X date in fragment 3B, line 6 of the Karnak Priestly Annals belongs to his reign.

[8] Recently, the first conclusive date for king Psusennes II was revealed in a newly published priestly annal stone block.

[9] The preceding line of this document recorded the induction of Nesankhefenmaat's father, a certain Nesamun, into the priesthood of Amun-Re in king Siamun's reign.

[12] Dodson notes the recently found annal block document establishes that Psusennes II "was indeed a 'real' king, with a reign that was recognized at Thebes.

"[13] Dodson also writes that Psusennes II's royal status was confirmed when Jean Yoyotte realized "that a batch of crude faience shabtis bearing the name of a [king] Pasebkhanut (i.e., Psusennes) found in the antechamber of Tanis [Tomb] NRT-III did not belong to the tomb's original owner, Pasebkhanut I, as had originally been assumed, but to the later king of the [same] name.

[21] The land register recorded that certain water rights were formerly owned by Nysu-Bastet's mother Tewhunet in Year 19 of a king Psusennes.

The term "mother" in ancient Egypt could also be an allusion to an ancestress, the matriarch of a lineage whereby Nysu-Bastet may have been petitioning for his hereditary water rights that belonged to his grandmother, whose family name was Tewhunet.

[7] Psusennes II ruled Egypt for a minimum of 19 years based on the internal chronology of the Large Dakhla stela.

However, a calculation of a lunar Tepi Shemu feast which records the induction of Hori son of Nespaneferhor into the Amun priesthood in regnal year 17 of Siamun, Psusennes II's predecessor—demonstrates that this date was equivalent to 970 BC.

Psusennes II's royal name has been found associated with his successor, Shoshenq I in a graffito from tomb TT18, and in an ostracon from Umm el-Qa'ab.