This is Bishop Fox's chantry within Winchester Cathedral. A chantry is a place within a church specially built for honouring and remembering important people buried there. Chantries were abolished in 1547 by Henry VIII however Winchester Cathedral is lucky enough to possess 6 of the most beautiful remaining chantries in the country which contain the bodies of 6 of Winchester's most important Bishops.
This is the tomb of Richard Fox who was Bishop of Winchester from 1501 to 1528 during the reign of Henry VII and VIII. Through the bars you can see the stone skeleton carving, it is meant to symbolise the fact that death does not respect rank, that is, we all die no matter how important we have been during life! Of his notable acts Richard Fox baptised Henry VIII and founded Corpus Christi College in Oxford.