305] The French prince and the English here reiterated their promises of cordial friendship, pledged their faith not to invade each other's dominions during the crusade, mutually exchanged the oaths of all their barons and prelates to the same effect, and subjected themselves to the penalty of interdicts and excommunications, if they should ever violate this public and solemn engagement.

They then separated; Philip took the road to Genoa, Richard that to Marseilles, with a view of meeting their fleets, which were severally appointed to rendezvous in these harbors.
They put to sea; and nearly about the same time were obliged, by stress of weather, to take shelter in Messina, where they were detained during the whole winter.

This incident laid the foundation of animosities which proved fatal to their enterprise.
Richard and Philip were, by the situation and extent of their dominions, rivals in power; by their age and inclinations, competitors for glory; and these causes of emulation, which, had the princes been employed in the field against the common enemy, might have stimulated them to martial enterprises, soon excited, during the present leisure and repose, quarrels between monarchs of such a fiery character.

Equally haughty, ambitious, intrepid, and inflexible, they were irritated with the least appearance of injury, and were incapable, by mutual condescensions, to efface those causes of complaint which unavoidably rose between them.

Richard, candid, sincere, undesigning, impolitic, violent, laid himself open on every occasion to the designs of his antagonist; who, provident, interested, intriguing, failed not to take all advantages against him: and thus, both the circumstances of their disposition in which they were similar, and those in which they differed, rendered it impossible for them to persevere in that harmony which was so necessary to the success of their undertaking.
The last king of Sicily and Naples was William II., who had married Joan, sister to Richard, and who, dying without issue, had bequeathed his dominions to his paternal aunt Constantia, the only legitimate descendant surviving of Roger the first sovereign of those states who had been honored with the royal title.