Who is The Bishop, Don Toribio de Caceres y Virtudes from Of Love and Other Demons and what is their importance?

The Bishop is seventy-three years old and asthmatic. He is an indecisive man, who nevertheless maintains the traditions of the Church. The Bishop's religious fanaticism comes in unexpected points and disappears at other points. For example, the Bishop's harsh treatment of his confidant, Cayetano, after Cayetano admits his love for Sierva, is unexpected.