Bernward was born around 960 to a noble Saxon family — educated at the Hildesheim cathedral school under Bishop Osdag and at the royal Ottonian court chapel where he served as tutor to the young Emperor Otto III.
In January 993, with the support of his former student Emperor Otto III and of his former teacher Archbishop Willigis of Mainz, Bernward was consecrated Bishop of Hildesheim — taking up the episcopal governance of the important Lower Saxon Catholic see that had been established by Louis the Pious in 815.
His thirty-year episcopate (993–1022) is distinguished by the establishment of Hildesheim as one of the principal Catholic artistic centres of the Ottonian-Salian period. Bernward — personally accomplished in metalwork, illumination, and architecture — established the episcopal goldsmith's workshop and bronze foundry that would produce the masterpieces of Ottonian Catholic art:
The Bernward Doors (Bernwardstür, c. 1015) — the pair of monumental bronze doors cast in one piece for the entrance of the Hildesheim Cathedral — depicting the scenes of Genesis and the life of Christ in sixteen relief panels, the first large-scale bronze sculpture cast in Europe since Roman antiquity, the principal monument of Ottonian sculpture, surviving in situ at Hildesheim today.
The Bernward Column (Christussäule, c. 1020) — the bronze spiral column modelled on the Roman columns of Trajan and Marcus Aurelius, depicting the scenes of the life of Christ in spiral relief, one of the principal Ottonian sculptural monuments.
He founded around 996 the Abbey of St. Michael at Hildesheim — the Romanesque double-choir cruciform basilica that is the architectural masterpiece of the Ottonian period and an UNESCO World Heritage Site (inscribed 1985, together with the adjoining cathedral). The St. Michael's painted wooden ceiling (the 'Hildesheim Tree of Jesse', c. 1230) survives as the principal medieval painted wooden ceiling in Germany.
Bernward died at his Abbey of St. Michael on November 20, 1022, and was buried in the abbey crypt where his tomb survives today.

