Meanwhile, M. Bresson at Madrid and M. Guizot in Paris were greatly dissatisfied with the aspect of affairs. The King of Naples had always been reluctant to allow his brother to be put forward as a suitor for the hand of the Queen of Spain. He distrusted Louis Philippe exceedingly, he was fearful of offending the Court of Vienna, he was on bad terms with his sister Christina, and, in point of fact, had not officially acknowledged the sovereignty of Isabella. Nevertheless, under the vigorous pressure brought to bear upon him from Paris, he agreed to renew diplomatic relations with the Court of Madrid, and to empower his ambassador to discuss his brother's marriage. But, having surmounted the difficulties at Naples, Louis Philippe and M. Guizot were confronted by more serious obstacles at Madrid. As time went on, the unpopularity of the Neapolitan match tended rather to increase than to diminish. So universal was the dislike to this connection that Guizot judged it prudent to warn Bresson to maintain friendly relations with Don Francisco de Paula,[817] seeing that it might be necessary before long to insist upon Isabella's marriage with one of his sons. As the prospects of the Bourbon candidates grew less favourable the Coburg marriage, greatly to the annoyance of Louis Philippe, began to be discussed as a necessary alternative. The impending visit of Prince Leopold to his brother the King of Portugal gave rise to many rumours. There was an intrigue on foot, reported Bresson, to promote the chances of that prince, and Bulwer, he was convinced, was more or less concerned in it.[818]