The marshal, who dissuaded and obeyed, led the vanguard in their march to Adrianople; the main body was commanded by the count of Blois; the aged doge of Venice followed with the rear; and their scanty numbers were increased from all sides by the fugitive Latins.

They undertook to besiege the rebels of Adrianople; and such was the pious tendency of the crusades that they employed the holy week in pillaging the country for their subsistence, and in framing engines for the destruction of their fellow-Christians.

But the Latins were soon interrupted and alarmed by the light cavalry of the Comans, who boldly skirmished to the edge of their imperfect lines: and a proclamation was issued by the marshal of Romania, that, on the trumpet's sound, the cavalry should mount and form; but that none, under pain of death, should abandon themselves to a desultory and dangerous pursuit.

This wise injunction was first disobeyed by the count of Blois, who involved the emperor in his rashness and ruin.

The Comans, of the Parthian or Tartar school, fled before their first charge; but after a career of two leagues, when the knights and their horses were almost breathless, they suddenly turned, rallied, and encompassed the heavy squadrons of the Franks.