For the first siege and conquest of Constantinople, we may read the original letter of the crusaders to Innocent III., Gesta, c. 91, p. 533, 534. Villehardouin, No. 75-99. Nicetas, in Alexio Comnen. l. iii. c. 10, p. 349 - 352. Dandolo, in Chron. p. 322. Gunther, and his abbot Martin, were not yet returned from their obstinate pilgrimage to Jerusalem, or St. John d'Acre, where the greatest part of the company had died of the plague.