He was the son of Hans Bornemann, who died in 1474.
After his father's death his mother was thrice remarried to painters- to Hinrik Funhof (d. 1485), to Absolon Stumme (d. 1499), and then finally to Wilm Dedeke (d. 1528).
His main work was the Altarpiece of St. Luke (Lukas-Altar) for St. Mary's Cathedral in Hamburg, now shown in St. James the Greater Church.
Upon his death in 1499 it was left unfinished, and was completed by Wilm Dedeke.
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