(Part 1 here)
The New Cathedral Rises
The first service at Salisbury Cathedral was held in 1225 A.D., when Bishop Richard Poore deemed that enough of the church had been completed. The next year, in March, the Earl of Sarum, William Longspee, who had been present at the dedication of the foundation (he laid the fourth stone)—died.
He is the first person to be buried in the cathedral.
The effigy of William Longspee, Earl of Sarum, at Salisbury Cathedral. Source.