Rainier II., Prince of Monaco, in 1302, entered the service of Philip the Fair, and was the first to lead a Genoese fleet in 1304 through the Straits of Gibraltar into the ocean. He conducted sixteen galleys to the coast of Flanders, and encountered the Flemish fleet before Ziricksee. He concerned himself little about the French vessels that had joined him, and allowed all of them to be taken; but as the Flemings were felicitating themselves on their victory, he returned with the rising tide, pierced their line, destroyed a number of their ships, and took prisoner Guy de Namur, son of the Count of Flanders.

Charles II. of Monaco was made governor of Provence and admiral of the fleet of Genoa. In 1338 he directed twenty galleys against the Flemings; in 1346, along with Antonio Doria, he led thirty against the English. The troops were disembarked, and joined the French army which encountered the English at Creçy. The Genoese were esteemed the best archers in the world. Grimaldi and Doria disposed them to the best advantage, and they would have done great execution in the English ranks, but that the rain had relaxed the strings of their bows, and, says Froissart:—

“They hooted, advancing with their crossbows presented, and began to shoot. The English archers then advanced one step, and shot their arrows with such force and speed that it was like a fall of snow. When the Genoese felt the arrows that pierced their arms, heads, and though their armour, some of them cut the strings of their crossbows, others flung them on the ground, and all turned and retreated in discomfiture. The French had a large body of men-at-arms on horseback, richly dressed, to support the Genoese. The King of France, seeing them fall back, cried out: ‘Kill me those scoundrels, for they block our way unreasonably!’ Then you would have seen the French men-at-arms lay about them, killing all they could of those runaways.”

Grimaldi fell there, mortally wounded.

Antonio Grimaldi, Genoese Admiral in 1332, was charged to revenge the ravages of the Aragonese on the coasts of Liguria, at a time when civil war prevented the Genoese from defending themselves and their possessions. Grimaldi, with a fleet of fifty-five vessels, harried the coasts of Catalonia, leaving behind him only ruins, and loading his vessels with plunder and captives. He carried off the galleys of the enemy from the harbour of Majorca. The Aragonese sent against him a fleet of twenty-four vessels, but he defeated it. In 1353 he was again placed at the head of the Genoese naval forces, and again sent against the Aragonese, who were now in league with the Venetians. Grimaldi had a fleet of fifty-two sail, and he hoped to fight and defeat the enemy before they could effect a junction. In this he was disappointed. He met the combined fleets near an islet off the north coast of Sardinia, August 29th, 1353. Pisani, the admiral of the Venetians, concealed a portion of his fleet, and Grimaldi, deceived, attacked the rest. Whilst thus engaged, he saw the detached portion of the Venetian flotilla approach, and he found that he had to deal with seventy-three sail. To present a strong front to the enemy, he bound his galleys together by the sides and masts, reserving only four on each wing to act as reserve. The Venetians and Catalans seeing this arrangement, also united their vessels to the number of fifty-four, but kept sixteen free at their flanks. This singular disposition shows how little, if at all, naval manœuvres had altered since the time of the civil war between Cæsar and Pompey.

The Catalans brought up three round tubs of vessels called coques against the right wing of Grimaldi, and sank as many of his galleys. Alarmed at this, he unlinked eleven of his vessels and rallied them to the eight of the reserve, and, without striking another blow, fled, and left the rest of the fleet a prey to the enemy. All the thirty vessels thus abandoned by the cowardly admiral were obliged to surrender.

In that day the Genoese lost 3,000 men killed, and 3,500 taken prisoners. The Republic had never before suffered such a disaster. Despair took possession of government and people, and they abdicated their independence and proclaimed John Visconti, Duke of Milan, as Lord of Genoa. Lucien (1506-14) murdered his brother John, so as to obtain the principality for himself—at least, so it was surmised, and Lucien was obliged to fly from Monaco on that account, and conceal himself, till Duke Charles of Savoy gave him an indult, forbidding all inquiry to be made into the matter of the crime, and search after the murderer. Then Lucien stole back to Monaco and assumed the sovereignty. His sister Francesca had married Lucas Doria, and when left a widow, by her will constituted her brothers Lucien and Augustine, who was bishop of Grasse, guardians of her children. After her death her son Bartholomew Doria complained bitterly that his uncle Lucien Grimaldi kept hold of the inheritance and would not surrender it. At last, resentment induced him to resolve on revenging himself on Lucien, for the wrong done to himself, and for the murder of his uncle John. He secured the promise of co-operation, if required, of the famous admiral, Andrew Doria, and he sent to Monaco some confederates, with a request to Lucien to let them be lodged there in safety, as they had got into a broil at Genoa. He also intimated his intention to follow shortly and halt at Monaco on his way to Lyons, where he hoped to have an interview with the King of France, and to obtain from him a charge in his army.

When Bartholomew arrived at Monaco, Lucien invited him to breakfast and gave to his nephew the place of honour at the table. Bartholomew could not eat, and when pressed to do so by his uncle complained that he had lost his appetite. Lucien then placed one of his children on Doria’s knee; but the young man trembled so that the child had to be taken from him. On rising from table Bartholomew asked the prince to give him some instructions as to his course.

At this time Andrew Doria’s fleet put into the harbour of Monaco, and the admiral sent to Bartholomew a laconic epistle, “What thou hast to do, do quickly.” Lucien bade his nephew accompany him into a cabinet at the end of the gallery. As the prince entered, the major-domo came up and informed him that Andrew Doria’s galleys had arrived in the port, and handed to Bartholomew the sealed letter bidding him be speedy in executing what he had undertaken.