Where was Saint Edmund buried?

Saint Osmund, also known as St. Edmund, was:

buried in his cathedral at Old Sarum

relics translated to Salisbury in 1226

relics later translated to the new cathedral and deposited in the chapel of Our Lady in the church in 1457

shrine was destroyed in the reign of King Henry VIII

bones still interred in the same chapel, covered with a marble slab

He died in a village in Fuffolk called Hoxne ( pronounced Hoxin ) killed by the invading Danes who captured him tied him to a tree and he died under a hail of arrows.

His remains are interred in ST Edmunds cathedral in Bury St Edmunds

from the Catholic Encyclopedia

King of East Anglia, born about 840; died at Hoxne, Suffolk, 20 November, 870. The earliest and most reliable accounts represent St. Edmund as descended from the preceding kings of East Anglia