On the very day of the sack of Antwerp, Don John of Austria arrived at Luxemburg. This ominous commencement of his viceregal reign was not belied by the events which followed; and the hero of Lepanto, the victor of the Turks, the idol of Christendom, was destined to have his reputation and well-won laurels tarnished in the service of the insidious despotism to which he now became an instrument. Don John was a natural son of Charles V., and to fine talents and a good disposition united the advantages of hereditary courage and a liberal education. He was born at Ratisbon on the 24th of February, 1543. His reputed mother was a young lady of that place named Barbara Blomberg; but one historian states that the real parent was of a condition too elevated to have her rank betrayed; and that, to conceal the mystery, Barbara Blomberg had voluntarily assumed the distinction, or the dishonor, according to the different constructions put upon the case. The prince, having passed through France, disguised, for greater secrecy or in a youthful frolic, as a negro valet to Prince Octavo Gonzaga, entered on the limits of his new government, and immediately wrote to the council of state in the most condescending terms to announce his arrival. Nothing could present a less promising aspect to the prince than the country at the head of which he was now placed. He found all its provinces, with the sole exception of Luxemburg, in the anarchy attendant on a ten years' civil war, and apparently resolved on a total breach of their allegiance to Spain. He found his best, indeed his only, course to be that of moderation and management; and it is most probable that at the outset his intentions were really honorable and candid. The states-general were not less embarrassed than the prince. His sudden arrival threw them into great perplexity, which was increased by the conciliatory tone of his letter. They had now removed from Ghent to Brussels; and first sending deputies to pay the honors of a ceremonious welcome to Don John, they wrote to the Prince of Orange, then in Holland, for his advice in this difficult conjuncture. The prince replied by a memorial of considerable length, dated Middleburg, the 30th of November, in which he gave them the most wise and prudent advice; the substance of which was to receive any propositions coming from the wily and perfidious Philip with the utmost suspicion, and to refuse all negotiation with his deputy, if the immediate withdrawal of the foreign troops was not at once conceded, and the acceptance of the Pacification guaranteed in its most ample extent.