[Harmless Teddy Bear]

However, why Shoshenq IV might have reused the tomb of Shoshenq III and moved him to the tomb of Osorkon II is unclear.

I am going to guess, Daddy Issues.

[Berosus]

Having a set of ushabtis in someone else’s tomb shouldn’t be a surprise for this tomb complex. Consider what was buried with Psusennes I. SunkenCiv will remember this was mentioned in Dr. Verlikovsky’s “Peoples of the Sea”:

Psusennes’ silver coffin was in a granite sarcophagus belonging to the XIX dynasty’s Merneptah, while another sarcophagus came from a Middle Kingdom tomb; each of the canopic jars had somebody else’s name on it. Finally, David Rohl suggested that a lapis lazuli necklace on Psusennes was originally a gift from the Assyrians to Amenhotep III. It seems none of these kings believed in using a new tomb item, if an old tomb item could be reused.