What is "duaenre"

Duaenre was a vizier under Menkaure during the Fourth dynasty of Egypt. His titles include those of king's son of his body (sA nswt n Xt=f), hereditary prince (jrj-pat), count (HAtj-a), vizier (tAjtj), scribe of the divine book (sS mDAt-nTr), mouth of Nekhen (r nxn), and mouth of every Butite (r p nb).