A typical galley was about 180 feet over all with a beam of 19 feet and a depth of hold of about 7-1/2 feet. A single deck sloped from about the water line to a structure that ran fore and aft amidships, about six feet wide, which served as a gangway between forecastle and poop and gave access to the hold. The forecastle carried the main battery of guns, and was closed in below so as to provide quarters for the fighting men. The poop had a deck house and a smaller battery; this deck also was closed in, furnishing quarters for the officers. There were two or three masts, lateen rigged, adorned in peace or war with the greatest profusion of banners and streamers. Indeed huge sums of money were expended on the mere ornament of these war galleys, particularly in the elaborate carvings that adorned the stern and prow.
In the conflict of Christian and Moslem, when Constantinople was the capital of Christendom, Greek fire on two critical occasions routed the Saracens. This substance was never understood in western Europe, and for centuries the secret was carefully preserved in the eastern capital. In the thirteenth and fourteenth centuries, it was used by the Moslem against the Christian, but the discovery of gunpowder soon made the earlier substance obsolete. In the 16th century cannon had already reached considerable dimensions, but in a naval battle between galleys these weapons were not used after the first volley or so. The tactics were little different from those of the day of the trireme, consisting simply of ramming, and fighting at close quarters with arquebus, bows, pike, and sword.
Twenty feet from the bows of every galley projected her metal beak, and all her guns pointed forward; hence in the naval tactics of the period everything turned on a head-on attack. The battle line, therefore, was line abreast. For the same reasons a commander had to fear an attack on his flank, and he maneuvered usually to get at least one flank protected by the shore. The battle line in the days of the galley could be dressed as accurately as a file of soldiers, but the fighting was settled in a close mêlée in which all formation was lost from the moment of collision between the two fleets.
The Campaign of Prevesa
Such were the men of war and the tactics common to Christian and corsair during the 16th century. While the Christians were slowly collecting their armada, Barbarossa, with a force of 122 galleys, set out to catch his enemy in detail if he could. Pirate as he was, the old ruffian had a clear strategic grasp of what he might do with a force that was inferior to the fleet collecting against him. The Christians were to mobilize at Corfu. The Papal squadron had collected in the Gulf of Arta, and Barbarossa made for it. By sheer luck just before he arrived it had moved to the rendezvous. If he had followed it up immediately, he might have crushed both the Papal and Venetian contingents, because Doria and the Spanish fleet had not yet arrived; but apparently he felt uncertain as to just how far off these reënforcements were and therefore did not attempt the stroke. Instead, he took up a defensive position in the Gulf of Arta, exactly where Antony had collected his fleet before the battle of Actium.
In September (1538) the Christian fleet under Doria left Corfu and crossed to the Gulf. Barbarossa had drawn up his force in battle array inside the entrance, under the guns of the Turkish fortress at Prevesa. Since this entrance is obstructed by a bar with too little water for Doria's heavier ships, he lay outside. Thus the two fleets faced each other, each waiting for the other to make the next move. For the first time in their careers the greatest admiral on the Christian side was face to face with the greatest on the Moslem side. Both were old men, Doria over seventy and Barbarossa eighty-two. The stage was set for another decisive battle on the scene of Actium. The town of Prevesa stood on the site of Octavius's camp, and again East and West faced each other for the mastery of the sea. With the vastly greater strength of the Christian fleet, and the known skill of its leader, everything pointed to an overwhelming victory for the Cross. What followed is one of the most amazing stories in history.
Having the interior lines and the smooth anchorage, Barbarossa had only to watch his enemy go to pieces in the open roadstead in trying to maintain a blockade. His officers, however, scorned such a policy, and, being appointees of the Sultan and far from subordinate in spirit to their chief, they were finally able to force his hand and compel him to offer battle to the Christians by leaving the security of the gulf and the fortress and going out into the open, exactly where Doria wanted him. Accordingly on the 27th of September, the Turkish fleet sailed out to offer battle. It happened that Doria had gone ten miles away to Sessola for anchorage, and the Galleon of Venice lay becalmed right in the path of the advancing fleet. Condalmiero sent word for help, and Doria ordered him to begin fighting, assuring him that he would soon be reënforced.
The Turkish galleys, advancing in a crescent formation, soon enveloped the lonely ship. Her captain ordered his crew to lie down on her deck while he alone stood, in full armor, a target to the host of Moslems who pushed forward in their galleys anxious for the honor of capturing this great ship. Condalmiero ordered his gunners to hold their fire until the enemy were within arquebus range. Then the broadsides of the galleon blazed and the surrounding galleys crumpled and sank. A single shot weighing 120 pounds sank a galley with practically all on board. The signal to retreat was given and speedily obeyed.
Thereafter there were to be no more rushing tactics. Barbarossa organized his galleys in squadrons of twenty, which advanced, one after the other, delivered their fire, and retired. All the rest of the day, from about noon till sunset, this strange conflict between the single galleon and the Turkish fleet went on. The ship was cumbered with her fallen spars; she had lost thirteen men killed and forty wounded. The losses would have been far greater but for the extraordinarily thick sides of the galleon. After sundown the Turkish fleet appeared to be drawing up in line for the last assault. On the Galleon of Venice there was no thought of surrender; the ammunition was almost spent and the men were exhausted with their tremendous efforts, but they stood at their posts determined to defend their ship to the last man.
Then, to their astonishment Barbarossa drew off, sending some of his galleys to pursue and cut off certain isolated Christian units, but leaving the field to the Venetian galleon. Meanwhile, during all that long, hot afternoon the great fleet of Andrea Doria, instead of pressing forward to the relief of the Galleon of Venice and crushing Barbarossa with its great superiority in numbers, was going through strange parade maneuvers about ten miles away. Doria's explanation was that he was trying to decoy Barbarossa out into deeper water where the guns of the nefs could be used, but there is no other conclusion to be reached than that Doria did not want to fight. Fortune that day offered him everything for an overwhelming victory, one that might have ranked with the decisive actions of the world's history, and he threw it away under circumstances peculiarly disgraceful and humiliating. Never did commander in chief so richly deserve to be shot on his own deck. The following day as a fair wind blew for Corfu, Doria spread sail and retired from the gulf, while Barbarossa, roaring with laughter, called on his men to witness the cowardice of this Christian admiral.