The Coffin of St. Cuthbert is to go on show at Durham Cathedral. When it opened around 100 years ago was found also to contain the head of St. Oswald. The Coffin is regarded as the most important pre-Norman wooden object to survive in England.
Read more about St Cuthbert’s Coffin here:
https://www.theguardian.com/science/2017/jul/28/st-cuthberts-coffin-durham-cathedral