San Giorgio as bombardment ship and convoy guard

How useful was the San Giorgio class as a bombardment ship in the Second World War?

Very useful for bombardment and slow convoy protection because it preserved modern battleships for more demanding operations.

San Giorgio retained twin 10-inch and numerous 7.5-inch guns, giving Italy a useful shore-bombardment platform without consuming one of only six modern battleships. Her roughly 22-knot speed was adequate for convoy work, and treaty cruisers would prefer to outrun rather than duel her heavy battery. San Marco provided a second hull with similar potential. Destroyer torpedo attacks remained a serious weakness, so the old cruisers still needed escorts. Their value lay in assigning a durable old ship to missions where speed mattered less than gun weight and presence.