But Pisa was not yet done with the Arab. She stood for Europe. In 1063 she fought at Palermo, returning laden with booty. It was then, after much discussion in the Senate, [ [19] ] sending an embassy to the Pope and another to "Rè Henrico di Germania," that she decided to employ this spoil in building the Duomo, in the place where the old Church of S. Reparata stood, and more anciently the Baths of Hadrian, the Emperor. The temple, Tronci tells us, [ [20] ] was dedicated to the Magnificent Queen of the Universe, Mary, ever Virgin, most worthy Mother of God, Advocate of sinners. It was begun in 1064, and many years, as Tronci says, were consumed in the building of it. [ [21] ] The pillars—and there are many—were brought by the Pisans from Africa, from Egypt, from Jerusalem, from Sardinia, and other far lands.
At this time Pisa was divided into four parts, called Quartieri. The first was called Ponte, the ensign of which was a rosy Gonfalon; the second, di Mezzo, which had a standard with seven yellow stripes on a red field; the third, Foriporta, which had a white gate in a rosy field; and the fourth, Chinsica with a white cross in a red field. [ [22] ]
Nor was the Duomo the only building that the Pisans undertook about this time. Eight years later, the Church of S. Pietro in Vincoli, called to-day S. Pierino, was built on a spot where of old "there was a temple of the Gentiles" dedicated to Apollo; that, when the Pisans received the faith of Jesus Christ, they gave to St. Peter, the Prince of the Apostles. This church appears to have been consecrated by the great Archbishop Peter on 30th August 1119.
These two churches, and especially the Duomo, still perhaps the most wonderful church in Italy, prove the greatness of the civilisation of Pisa at this time. She was then a self-governed city, owing allegiance, it is true, to the Marquisate of Tuscany, but with consuls of her own. Since she was so warlike, the nobles naturally had a large part in her affairs. In the Crusade of 1099 the Pisans were late, as the Genoese never ceased to remind them,—to come late, in Genoa, being spoken of as "Come l'ajuto di Pisa"; and, indeed, like the Genoese, the Pisans thought as much of their own commercial advantage in these Holy Wars as of the Tomb of Jesus. In 1100 they returned from Jerusalem, their merchants having gained, una loggia, una contrada, un fondaco e una chiesa for their nation in Constantinople, with many other fiscal benefits. Nor were they forgetful of their Duomo, for they came home with much spoil, bringing the bodies of the Saints Nicodemus the Prince of the Pharisees, Gamaliel the master of St. Paul, and Abibone, one of the seventy-two disciples of our Lord Jesus Christ. [ [23] ]
Encouraged by their success, not long afterwards, they, in their invincible confidence and force, decided to undertake another enterprise. Urged thereto by their Archbishop Peter, they set out, partly for glory, partly in the hope of spoil to free the thousands of Christians held captive by the Arabs in the Balearic islands. The fleet sailed on the 6th August 1114, the Feast of S. Sisto, the anniversary of other victories. There were, it seems, some three hundred ships of diverse strength; and every sort of person, old and young, took part in this adventure. Going astray, they first landed in Catalonia and did much damage; then, "acknowledging their unfortunate mistake," they found the island, where, under Archbishop Peter and the Pope's gonfalone, they were entirely successful. They released the captives, and, amid the immense spoil, they brought away the son of the Moorish king, whom later they baptized in Pisa and sent back to the Moors. The Pisan dead were, however, very many. At first they thought to load a ship with the slain and bring them home again; but this was not found possible. Sailing at last for Marseilles, they buried them there in the Badia di S. Vittore, later bringing the monks to Pisa.
Now, while the glory of Pisa shone thus upon the waters far away, the Lucchesi thought to seize Pisa herself, deprived of her manhood. But the Florentines, who at this time were friends with Pisa, since their commerce depended upon the Porto Pisano, sent a company to guard the city, encamping some two miles off; for since so much loot lay to hand, to wit, Pisa herself, the Florentine captains feared lest they might not be able to hold their men. And, indeed, one of their number entered the city intent on the spoil, but was taken, and they judged him worthy only of death. But the Pisans, not to be outdone in honour, refused to allow him to be executed in their territory; then the Florentines bought a plot of ground near the camp, and killed him there. When the fleet returned and heard this, they determined to send Florence a present to show their gratitude. Now, among the spoil were some bronze gates and two rosy pillars of porphyry, very precious. Then they besought the Florentines to choose one of these, the gates or the pillars, as a gift. And Florence chose the pillars, which stand to-day beside the eastern gate of the Baptistery in that city. But on the way to Florence they encountered the Mugnone in flood, and were thrown down and broken there. Hence the Florentines, that scornful and suspicious folk, swore that the Pisans had cracked their gifts themselves with fire before sending them, that Florence might not possess things so fair.
Other jealousies, too, arose out of the success of Pisa, though indirectly. For the Genoese, never content that she should have the overlordship of Sardinia, were still more disturbed when Pope Gelasius II., that Pisan, gave Corsica to Pisa, so that about 1125 [ [24] ] they made war on her. The war lasted many years, till Innocent II, being Pope and come to Pisa, made peace, giving the Genoese certain rights in Corsica. About this time S. Bernard was in Pisa, where in 1134 Innocent II held a General Council; not for long, however, for in the same year he set out for Milan to reconcile that Church with Rome.
Her quarrel with Genoa was scarcely finished when Pisa found herself at war with the Normans in Southern Italy, defending heroically the city of Naples and utterly destroying Amalfi, the wonderful republic of the South. [ [25] ] Certainly the might of Pisa was great; her supremacy was unquestionable from Lerici to Piombino, but behind her hills Lucca was on watch, not far away Florence her friend as yet, held the valley of the Arno, while Genoa on the sea dogged her steps between the continents. Thus Pisa stood in the middle of the twelfth century the strongest and most warlike city in Tuscany, full of ambition and the love of beauty and glory. For it was now in 1152 that she began to build the Baptistery, and in 1174 the famous Campanile, a group of buildings with the Duomo unrivalled in the world.
Meanwhile the Great Countess of Tuscany had died in 1115; more and more Italy became divided against itself, and by the end of the century Guelph and Ghibelline, commune and noble, were tearing her in pieces. Tuscany, really little more than a group of communes devoted to trade, with the great feudatories ever in the offing, without any real unity, slowly became the stronghold of the Guelphs. Only Pisa, [ [26] ] glorying in the strength of the sea and the splendour of war, was Ghibelline, with Siena on her sunny hills. Now, having won Sardinia for herself, her nobles there established were, as was their manner everywhere, continually at feud. The Church, thinking to make Pisan sovereignty less secure, supported the weaker. Already Innocent III had, following this plan, called on the Pisans to withdraw their claim to the island. And it was a Pisan noble, Visconti, who, marrying into one of the island families related to Gregory IX, recognised the Papal suzerainty. Thus this family in Pisa became Guelph. But the other nobles, among whom was the Gherardesca family, threw their weight on the other side, and so Pisa, who had ever leaned that way, became staunchly Ghibelline. [ [27] ]
The quarrel with Florence was certain sooner or later, for Florence was growing in strength and riches; she would not for ever be content to let Pisa hold her sea-gate, taking toll of all that passed in and out. It was in 1222 that the first war broke out with the White Lily. Any excuse was good enough; the bone of contention appears to have been a lap-dog belonging to one of the Ambassadors [ [28] ] . Pisa was beaten. In 1259, nevertheless, she turned on the Genoese and drove them down the seas. But the death of Frederic in 1250 was the true end of the Ghibelline cause in Italy.