Who is Don Giuseppe Trajella from Christ Stopped at Eboli and what is their importance?

Don Giuseppe Trajella is the town priest. Once a seminary professor, Don Trajella was sent into de facto exile by the church to minister to a parish in Gaglianello. He was once a man of wit and letters, according to Carlo, but has since given up in despair. He spends most of his time either in the church in Gagliano or his small, filthy home with his ailing, elderly mother. He is incredibly bitter and despises the townspeople for their lack of religion. He is hated by most of the townspeople in part because he is perpetually drunk.