For the transactions of Charlemagne with the Holy Land, see Eginhard, (de Vita Caroli Magni, c. 16, p. 79 - 82,) Constantine Porphyrogenitus, (de Administratione Imperii, l. ii. c. 26, p. 80,) and Pagi, (Critica, tom. iii. A.D. 800, No. 13, 14, 15.)