Sangred—Dowts of Holy Scripture

In the will of John Hedge, of Bury St. Edmund's, made in 1504, is this item:— "I beqweth to the curat of the seid church iiijs. iiijd. for a *sangred* to be prayed for in the bedroule for my soule and all my good ffrends soulls by the space of a yeer complete." In the same year Thomas Pakenham, of Ixworth Thorpe, bequeathed 6 hives of bees to the sepulchre light, "to pray for me and my wyffe in y'e *comon sangered*;" and in 1533, Robert Garad, of Ixworth, bequeathed to the high altar ijs. "for *halfe a sangred*." Can any of your reader explain what the *sangred* is? or give me any information…