The failure may in some measure be ascribed to the abuse and multiplication of the crusades, which were preached at the same time against the Pagans of Livonia, the Moors of Spain, the Albigeois of France, and the kings of Sicily of the Imperial family.

[86] In these meritorious services, the volunteers might acquire at home the same spiritual indulgence, and a larger measure of temporal rewards; and even the popes, in their zeal against a domestic enemy, were sometimes tempted to forget the distress of their Syrian brethren.

From the last age of the crusades they derived the occasional command of an army and revenue; and some deep reasoners have suspected that the whole enterprise, from the first synod of Placentia, was contrived and executed by the policy of Rome.

The suspicion is not founded, either in nature or in fact.

The successors of St.Peter appear to have followed, rather than guided, the impulse of manners and prejudice; without much foresight of the seasons, or cultivation of the soil, they gathered the ripe and spontaneous fruits of the superstition of the times.