In Italian service, the ship was named Attilio Regolo after Marcus Atilius Regulus the Roman statesman and general who was a consul of the Roman Republic in 267 BC and 256 BC.

She was torpedoed by the submarine HMS Unruffled on 7 November 1942, and remained in drydock for several months with her bow shattered.

[2] She was interned in Port Mahon in the island of Menorca, Spain, after the armistice on 9 September 1943.

[3] After the Peace Treaty on 10 February 1947, she and her sister ship Scipione Africano were transferred to France as war reparations (Scipione Africano was renamed Guichen).

The ships were extensively rebuilt for the French Navy by La Seyne dockyard with new anti-aircraft-focused armament and fire-control systems in 1951–1954 with the following changes: The ships were decommissioned in 1961.