The Capitani Romani class was a class of light cruisers acting as flotilla leaders for the Regia Marina. They were built to outrun and outgun the large new French destroyers of the Le Fantasque and Mogador classes. Twelve hulls were ordered in late 1939, but only four were completed, just three of these before the Italian armistice in 1943. The ships were named after prominent ancient Romans.
Caio Duilio was an Andrea Doria-class helicopter cruiser of the Marina Militare. Built by Navalmeccanica at Castellammare di Stabia, it was named after the Roman consul Gaius Duilius.
USS Stein (DE-1065) was a Knox-class destroyer escort, later redesignated as a frigate (FF-1065) of the United States Navy. She was named after Tony Stein, the first Marine to receive the Medal of Honor for action in the Battle of Iwo Jima.
HMS Lowestoft was a Rothesay-class or Type 12 class anti-submarine frigate of the British Royal Navy. Lowestoft was reconstructed in the late 1960s to largely the same pattern as the third group of Leander-class frigates, with new radar and fire control and a hangar and pad for a Westland Wasp helicopter for longer range, anti-submarine, engagement. In the late 1970s it was converted as the prototype towed array frigate for the Royal Navy, but retained its full armament. Lowestoft was sunk as a target on 8 June 1986 by HMS Conqueror using a Tigerfish torpedo. She was the last Royal Naval target to be sunk still displaying her pennant number.
The Impavido class were the second group of destroyers built for the Italian Navy after World War II and the first Italian guided missile destroyers. Similar in performance to the US Navy's Charles F. Adams class, these ships were essentially improved Impetuoso-class vessels, with the after gun-turret being replaced by a Tartar surface-to-air-missile launcher and associated radar.
The Commandant Rivière class was a class of frigates built for the French Navy in the late 1950s and early 1960s. Labeled "aviso-escorteur", they were designed to perform the role of overseas patrol in peacetime and anti-submarine escort in wartime. This vessel class is named after the French Navy officer Henri Rivière (1827–1883).
Dat Assawari was a frigate operated by the Libyan Navy. The ship was built by VT Group in the United Kingdom. It was ordered in February 1968 and delivered in 1973. The ship's design, the Vosper Mk 7 is a modified version of the Alvand-class frigate built for the Iranian Navy. The ship had an extensive refit in Italy by CNR Riva Trigoso 1979–1980 when new sensors and missiles were installed. During the refit, the ship was mined by unidentified swimmers. The vessel returned to service in 1983, but returned to Italy for repairs in 1984–1985 and 1989–1990. The frigate was reportedly scrapped in the late 1990s.
The Bergamini class was a class of four frigates operated by the Italian Navy. They entered service in 1961, with the last one being stricken in 1988.
The Albatros class was a class of eight corvettes designed and built in Italy in the 1950s. Paid for by US funds, they were operated by Italy, Denmark, Indonesia and the Netherlands. The last ships of the class were retired from service in Italy in 1991.
The Soldato class was a class of destroyers of the Italian Regia Marina built by Ansaldo of Genoa prior to the First World War. Ten were built for the Regia Marina between 1905 and 1910, while an eleventh ship was built for China but purchased by Italy before completion. They served during the First World War, where one was lost, with the remaining ships sold for scrap in the 1920s and early 1930s.
The Admiral Pereira da Silva class of frigates, also known as Admiral-class frigates, were in the service of the Portuguese Navy between 1966 and 1985. The class was based on the Dealey-class destroyer escort of the United States Navy. The three ships of the class were built in Portugal, at the Lisnave shipyards and the shipyards of Viana do Castelo. The construction of the ships was part of the effort of Portugal to expand its fleet in the face of unrest in the empire and was financed by the United States via the Mutual Defense Assistance Program. Financial problems prevented them from ever being modernised and they were deleted in 1989.
INS Brahmaputra was a Leopard-class frigate of the Indian Navy. She was built by the Scottish shipbuilder John Brown & Company and completed in March 1958. Brahmaputra served during the Indo-Pakistani War of 1965 and the Indo-Pakistani War of 1971. She was scrapped in 1986.
Alpino was a frigate operated by the Italian Navy during the Cold War.
Carabiniere was a frigate operated by the Italian Navy. Launched in 1967, the vessel served in the anti-submarine role during the Cold War until 1992. The ship was then recommissioned as a testing platform for new weapons systems, including Aster, finally retiring in 2008.
The Audaz class was a class of nine destroyers built for the Spanish Navy after the Second World War. Construction was slow, with only four completed to the original design from 1953–1956. The remaining five ships completed as anti-submarine escorts with a new armament and sensor fit from 1960 to 1965, while the original four ships were also modified to this standard. Built at Ferrol, they completed in 1946–1950 and were rated as gunboats, and were redesignated as frigates in 1959. The last of the class, Intrepido, was stricken in 1982.
KRI Oswald Siahaan (354) is an Ahmad Yani-class frigate operated by the Indonesian Navy. Prior to her service in the Indonesian Navy, she served in the Royal Netherlands Navy as Van Speijk-class frigateHNLMS Van Nes (F805).
HNLMS Tjerk Hiddes (F804) was a frigate of the Van Speijk class. The ship was in service with the Royal Netherlands Navy from 1967 to 1986. The frigate was named after Dutch naval hero Tjerk Hiddes de Vries. The ship's radio call sign was "PAVC". She was sold to the Indonesian Navy where the ship was renamed KRI Ahmad Yani (351).
Chateaurenault was a French Capitani Romani-class light cruiser, acquired as war reparations from Italy in 1947 which served in the French Navy from 1948 to 1961. She was named in honour of François Louis de Rousselet, Marquis de Châteaurenault. 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.
Impavido(D 570) is the lead ship of the Impavido-class destroyer of the Italian Navy.
Intrepido(D 571) is the second ship of the Impavido-class destroyer of the Italian Navy.
Italian Navy 
