Guido, first Marquess of Boudonitza, the “Marchesopoulo,” as his Greek subjects called him, played a very important part in both the political and ecclesiastical history of his time—just the part which we should have expected from a man of his lawless disposition. The “Chronicle” above quoted represents him as present at the siege of Corinth. He and his brother, whose name may have been Rubino, were among the leaders of the Lombard rebellion against the Latin Emperor Henry in 1209; he obstinately refused to attend the first Parliament of Ravenika in May of that year; and, leaving his castle undefended, he retreated with the still recalcitrant rebels behind the stronger walls of the Kadmeia at Thebes. This incident procured for Boudonitza the honour of its only Imperial visit; for the Emperor Henry lay there one evening—a certain Wednesday—on his way to Thebes, and thence rode, as the present writer has ridden, through the _closure_, or pass, which leads over the mountains and down to Dadi and the Bœotian plain—then, as now, the shortest route from Boudonitza to the Bœotian capital[335], and at that time the site of a church of our Lady, _Sta Maria de Clusurio_, the property of the abbot and canons of the Lord’s Temple. Like most of his fellow-nobles, the Marquess was not over-respectful of the rights and property of the Church to which he belonged. If he granted the strong position of Lamia to the Templars, he secularised property belonging to his bishop and displayed a marked unwillingness to pay tithes. We find him, however, with his fellows, signing the _concordat_ which was drawn up to regulate the relations between Church and State at the second Parliament of Ravenika in May, 1210[336].