Who was the sculptor in charge of the Medici garden where Michelangelo studied?

The sculptor in charge of the Medici garden where Michelangelo studied was Bertoldo di Giovanni.

Bertoldo was a Florentine sculptor and medallist who had been a pupil and assistant of Donatello. After Donatello’s death, Bertoldo helped complete some of his unfinished works, then entered the service of Lorenzo de’ Medici, known as Lorenzo the Magnificent.

Lorenzo maintained a garden of antiquities near San Marco in Florence, where young artists could study ancient sculpture and practice their craft. Bertoldo served as its curator and supervised the artists working there. Michelangelo studied in this environment as a teenager, gaining access to classical models and Medici patronage.

The other options are linked to Michelangelo but do not fit the question. Donatello was Bertoldo’s teacher, Verrocchio ran a major Florentine workshop, and Ghiberti belonged to an earlier generation of sculptors. Bertoldo’s own reputation is often overshadowed by his connection to Donatello and Michelangelo.