He looked to the edges of the piazza and the mansions that overlooked it. He saw crossbowmen in the orange and green livery of the Monaldeschi on rooftops and in windows, and mounted lancers in the outlets to the square.

The Filippeschi should have missed Mass today.

"God damn your puzzolenti souls, you bastards!" Marco roared as he fought. "May your mothers and fathers burn in Hell!"

Some men were trying to help Marco; Daoud saw little knots of struggle as his eyes traveled over the crowd. But no one could reach Marco because the orange Monaldeschi tunics were everywhere.

"What is happening?" Ugolini demanded.

"They are killing Marco di Filippeschi," said Daoud, thinking: He helped me. He needs help now. His hand gripped the hilt of his sword tightly, and he wanted to draw it and rush down the stairs to fight beside Marco.

But the knowledge that anyone who went to Marco's aid would die with him held him motionless. Daoud was not free to draw his sword for Marco, not while the Tartar ambassadors lived and the pope might yet proclaim a new crusade.

Marco was shouting obscenities so rapidly that Daoud's Italian failed him and he could not understand. The Filippeschi chieftain was tightly bound and helpless, and the men around him pushed him to his knees.

God be merciful to him, Daoud prayed.

"Lift me up so I can see!" Ugolini cried to his men-at-arms.