Celso Mancini (1542–1612) was a Roman Catholic prelate and Renaissance philosopher who served as Bishop of Alessano (1597–1612).
[2] In 1555 he assumed the habit of the Lateran Congregation of Canons Regular at Santa Maria di Porto in Ravenna.
He distinguishes between the two duties of the state in reference to money, the care required for its maintenance, and the determination of its value, which both must correspond to the relations of the market.
Agreeing in this with other political writers of his day, Mancini regards it as the duty of a prince to maintain abundance in his dominions, exercising a paternal influence over them.
Mancini's arguments throw considerable light on the subject of taxes, and indicate the first outlines of a doctrine which was developed much later.