The Duchess had given birth to a son in 1544, but was survived only by a daughter Virginia: her marriage had been interested, and her lord lost no time in contracting another from similar motives, on the excuse of requiring a male heir. In August he went to kiss the Pope's feet at Rome, on occasion of negotiating a new matrimonial alliance with his granddaughter, Vittoria Farnese. On the 30th he returned home, and next month again met his Holiness at Perugia. The nuptials were interrupted by the assassination of the bride's father, Duke Pier-Luigi, whose son had supplanted Guidobaldo at Camerino, and whose tyranny in his new state of Parma sharpened the daggers of his outraged nobles. The ceremony, however, took place on the 30th of January, 1548, when Vittoria, who had been previously affianced to Duke Cosimo I., was twenty-eight years of age. On the 2nd of February she visited Urbino, amid many demonstrations of respect, among which was a muster of forty lads in her livery of yellow velvet, to each of whom an allowance of seven scudi had been voted by the city; but it was the Duke's pleasure that they should pay for their own dress. Art, too, had contributed its honours, and Vasari narrates how Battista Franco aided in decorating the triumphal arches designed by Girolamo Genga for her reception. Similar welcome was given her at Gubbio, where the youths wore purple velvet with white sleeves and white lilies.[*54] Coincident with, and in consequence of, this marriage, the Duke received from Paul a new investiture of his states, and a cardinal's hat, with the title of S. Pietro in Vinculis, for his brother Giulio, who, though but in his fifteenth year, was soon after named Legate of Perugia. On the 20th of February, 1549, there was born a prince, who succeeded to the dukedom as Francesco Maria II., and the grateful people manifested their loyalty by customary congratulations and donatives.[55] These happy events were, ere long, interrupted by the death of Paul III. on the 10th of November, followed by that of the dowager Duchess of Urbino, on the 14th of February, thereafter.
The little state of San Marino forms a solecism in the polity of Europe, having preserved its petty limits and its purely popular government during many centuries, whilst all the other republics of Italy successfully yielded to personal ambition or foreign conquest.[*56] For its independence during the ceaseless changes of the fifteenth and sixteenth centuries it was debtor to the Dukes of Urbino, whose aid was ever at hand when their name proved an inadequate safeguard. The nature of the protection which they accorded to that republic is shown in the subjoined document, which seems worthy of insertion from its resemblance to those letters of maintenance usually granted about the same period by the greater barons of Scotland, in favour of less powerful neighbours and friends, among the minor nobility, and even the burgh communities.
"Protection under which, at the instance of the Liberty of S. Marino, pressed by its envoys, the Lord Duke Guidobaldo II. assumes the aforesaid Liberty, its men and territory, following therein in this the course adopted by Duke Federico, Guido I., Francesco Maria his father, and others of his house: promising to the best of his ability, and at all times, to defend, protect, and guard it against all persons whatsoever who may seek or wish to injure it, whether in respect to its possessions, subjects, state, or pre-eminence, holding its enemies for his enemies, and its allies for his allies; and further, undertaking to accord to it all possible aid and favour in the maintenance of its independence and freedom: the said envoys, on the other part, obliging themselves to the Lord Duke, in name of the foresaid, with all their exertion and power to assist, uphold, and preserve the subjects, state, honours, and dignity of the said Lord Duke, against whatsoever person, state, or potentate who may make attempts against him; promising to hold the friends of his Excellency as their friends, and his foes as their foes, and to pay him at all times the respect due to a faithful and good protector. At the requisition of Ser Bartolo Nursino, 20th May, 1549."
It was Guidobaldo's policy to maintain with the Holy See those amicable relations which his second marriage had established, and he had accordingly, on the death of Paul III., sent some troops to Perugia, in order to secure the quiet succession of Julius III. This being effected, he went to Rome on a visit of congratulation to the new Pontiff, accompanied by Aretino, whose venal appetites were ever on the watch for opportunities of bringing his sycophancy to a good market. The Pope disappointed him of the anticipated guerdon, but, aware of the ready transition from adulation to slander, disarmed his tongue of its venom by a gracious accolade, kissing the forehead of this "scourge of princes." The first token of favour bestowed on the Duke by his Holiness was his nomination as governor of Fano in 1551. In the following year he spent some time at Verona with the Venetian army, accompanied by his boy, who there had an illness which occasioned him much anxiety. This command was a somewhat anomalous one, with the title of Governor of the Republican forces, which he vainly negotiated to exchange for that of General. Disgusted by this refusal, he listened to an overture from his brothers-in-law for transferring his services to the French King. Ottavio Farnese, now Duke of Parma, apprehending some hostile intentions from the imperialists, had applied, in 1551, to the Pope for succours, in order to guarantee his possession of that state; but, unable to spare reinforcements or money, Julius had recommended him to take his own measures for defence. Acting on this advice, he had recourse to Henry II., from whom he accepted a condotta, on condition of Parma being supplied with a French garrison. Such a step could not fail to alarm the Emperor, who, representing that Ottavio had, in fact, made over his duchy to France, brought upon him the thunders of the Vatican. The inducement offered to Guidobaldo by the Farnesi for following them into Henry's service was that the King should renounce the supposed claims upon Urbino competent to his wife Caterina de' Medici, in right of her father Lorenzo, its usurping Duke. But the decided measures adopted by the Pontiff cut short this negotiation, and we hear no more of pretensions which were doubtless vamped up to serve a temporary purpose. Although the Pontiff was nominally a party to the petty war which ensued in Lombardy, it was, in fact, but a chapter in the prolonged struggle between the houses of Hapsburg and Bourbon, with which our narrative has no concern. Another episode in the same contest was more alarming to Central Italy, and, when Tuscany became involved in the strife, it seemed well for Julius to stand on the defensive. Accordingly, in January, 1553, he named Guidobaldo captain-general of the Church, who, in April, proceeded to Rome for his installation; and accompanied by a brilliant staff, reviewed the pontifical troops.
Siena, originally Ghibelline, had, during the recurring convulsions of a nominally democratic government, remained in some measure devoted to the imperialist party. But, irritated by the licence of their Spanish garrison, and alarmed at a rumoured intention of Charles V. to seize their state, and exchange it with the Farnesi for that of Parma, the citizens, in 1552, foolishly listened to the intrigues of French emissaries, and, with the Count of Pitigliano's aid, ousted their oppressors. In the campaign which followed, Siena was under French protection, whilst Florence efficiently co-operated with the imperialists against her, the Pope maintaining an armed neutrality. The duties of Guidobaldo were thus limited to an occupation of Bologna, in order to protect the ecclesiastical territories and his own state, on the passage of French troops into Tuscany. That his wishes favoured the independence of Siena appears from his having, at the election of Marcellus II., in April, 1554, recommended an intervention in its favour; but it was too late, as the city had already capitulated, and was soon after finally annexed to Florence.
The successor of Julius III., who died in March, 1555, was Marcello Cervini, Bishop of Gubbio; and the Duke of Urbino congratulated himself on seeing a personal friend mount the throne of St. Peter. But his satisfaction was transient. Popular superstition awarded an early death to any Pontiff who should take for title his Christian name: the fate of Adrian VI. had verified the omen; and, after a reign of but three weeks, Marcellus was carried to the tomb. Guidobaldo immediately took armed possession of the Roman gates for protection of the conclave; but the election of Cardinal Caraffa as Paul IV. passed off satisfactorily, and his energy was rewarded by a confirmation in his command, and the restoration of the Prefecture of Rome, with reversion to his son, an honour which, though long held by his father and grandfather, had been enjoyed for the last seventeen years by the Farnesi.