Complex sentence: The wording of the charter is typical for a hospital set up as a "chantry" to house "priests" to say prayers for the dead, in this case Alexander and Elizabeth (Isabella) de Quincy, his wife.
Split into simpler sentences: The wording of the Charter is typical for a Hospital set up as a "Chantry" to house "priests" to say prayers for the dead. In this case Alexander and Elizabeth (Isabella) de Quincy, his wife.