Why did Florence place Michelangelo’s David in front of the Palazzo Vecchio instead of on the cathedral roof?

Although the David was originally commissioned by the Opera del Duomo to be placed on the roofline of the Florence Cathedral, it was ultimately installed in front of the Palazzo Vecchio for two primary reasons.12

First, upon completion in 1504, Florentine officials concluded that the sculpture was too heavy to be safely hoisted and mounted on the cathedral's roof.2

Second, the sheer magnificence of Michelangelo’s finished work persuaded a committee of prominent citizens and artists—including Leonardo da Vinci and Sandro Botticelli—that the statue deserved a more visible and prestigious location. By placing the David at the entrance of the town hall, the city transformed the figure from a religious ornament into a powerful political symbol of the Florentine republic, representing the courage and readiness of the state to defend itself.12