In which church was William the Conqueror crowned?

William the Conqueror was crowned in Westminster Abbey.

The coronation took place in London on Christmas Day, 25 December 1066, shortly after William’s victory over Harold Godwinson at Hastings. The ceremony formalised William’s claim to the English throne and was conducted by Ealdred, Archbishop of York. William was reportedly acclaimed by the assembled English and Norman nobles, though unrest outside the abbey reflected how uncertain his conquest remained.

Westminster Abbey had been built and consecrated under Edward the Confessor shortly before the events of 1066. Choosing Edward’s royal church helped William present himself as the legitimate successor rather than merely a foreign conqueror. The abbey’s association with monarchy continued for centuries.

The ceremony is especially significant because William’s coronation is the first English coronation that can be firmly demonstrated to have taken place at Westminster Abbey. A later coronation at Winchester in 1070 was held for religious and political confirmation, but it does not change the answer to this question: William’s accession ceremony was held at Westminster.