He had more of a reputation of a builder than those of his predessors of the 21st dynasty - he built a great mudbrick enclosure wall at Tanis to protect the temples that he constructed there to Amun, Mut and Khonsu and also the royal tomb. (outside Tanis very little of his work has survived).
Psusennes I and Menkheperre
One of his daughters, Esemkhebe, married one of the Theban High Priests (Menkheperre - his brother).
Psusennes and Menkheperre held their respective offices for over half a century.
Psusennes I took the unprecedented step of adopting the title of "High Priest of Amun" (in the same way that the Theban priests had taken royal titles), it is thought to once again asert the Pharaoh's authority over the Theban priests. His wife, Mutnodjme (also his sister) also adopted the titles of the female counterpart of the High Priest of Amun. At Tanis built temples to the Theban deities to provide an alternative centre of worship for the gods and therefore break the High Priests power.
Psusennes was also married to the Lady Wiay. It is possible to positively identify two of his children:
Isetemkheb C(daughter) married her uncle Menkheperre
Ramesse-Ankhefenmut, is thought to have fallen into disgrace as his name was excised from the inscriptions in his burial chamber.
The Tomb of Psusennes I
Intact burial! His funerary equipment included Canopic Jars, 400 ushabtis, gold and silver vessels of shapes and sizes.
The outer sarcophagus (pink granite) was originally made for Merenptah (from Valley of the Kings). Inside was a smaller black granite coffin (again re-used from an earlier burial -a nobleman from the 19th Dynasty), inside this coffin was a solid silver coffin, inside this was the mumy which wore a fabulous solid gold funerary mask.
The burial of Mutnodjme
Although originally buried within Psusennes' tomb, her mummy and equipment were later removed and replaced by the burial of Psusennes' sucessor, Amenemope.