Passage: In 1941, she participated in Operation Grog, the shelling of Genoa, in  operations against Vichy convoys and supporting air reinforcements to Malta. In May, Sheffield took part in the sinking of the German battleship Bismarck, narrowly escaping a friendly fire torpedo attack by the aircraft carrier Ark Royal's Fairey Swordfish; Eleven torpedoes were dropped and only defective Duplex exploders and fine ship handling saved her from disaster. (In the report of the attack, Admiral Sir John Tovey, commanding Home Fleet, was told only no hits were scored on Bismarck. The reaction of Sheffield's crew "has not made its way into the official records".) On 12 June, she located and sank one of Bismarck's tankers, Friedrich Breme. After the destruction in early October 1941 of another German supply ship, Kota Penang, (aided by the cruiser Kenya), Sheffield returned to Britain.

Question: What location was the target of shelling attacks that this individual participated in?
Genoa