resolved to erect a tomb in Milan Cathedral to the memory of his brother, Giangiacomo de' Medici, Marquis of Marignano, commonly called Il Medeghino, he requested Michelangelo to supply the bronze-sculptor Leone Leoni of Menaggio with a design.

This must have been insufficient for the sculptor's purpose--a mere hand-sketch not drawn to scale.

The monument, though imposing in general effect, is very defective in its details and proportions.

The architectural scheme has not been comprehended by the sculptor, who enriched it with a great variety of figures, excellently wrought in bronze, and faintly suggesting Michelangelo's manner.
The grotesque _barocco_ style of the Porta Pia, strong in its total outline, but whimsical and weak in decorative detail, may probably be ascribed to the same cause.

It was sketched out by Michelangelo during the pontificate of Pius IV., and can hardly have been erected under his personal supervision.