Parliament of Ravennika (1210)

[1][2] Alongside their various fiefs and principalities, the Crusaders installed Roman Catholic prelates in the local Greek Orthodox sees; the pre-existing patterns of ecclesiastical organization were largely maintained, but the new clergy was soon riven by rivalries.

"[3] Many clerics, particularly French, soon left Greece for their homelands, while others were absentees and never visited their sees, and the behaviour of others differed little from that of mere adventurers out to make a fortune: the Latin Archbishop of Patras was suspended for financial mismanagement, and his counterpart of Corinth was dismissed and sent back to his monastery for misconduct.

The lord of the Duchy of Athens, Otho de la Roche, followed a similar policy, and even obliged the clergy to pay the land tax, thereby depriving the Latin Archbishopric of Thebes of over two thirds of its pre-Frankish conquest revenue.

[6] During his presence in Greece, Henry became aware of the dissensions within the Latin clergy and its disputes with the secular lords, and decided to resolve the differences by convening another parliament, again at Ravennika, in May 1210.

[7][8] The assembled lords and prelates concluded a concordat, which recognized the independence and immunity of all Church property in Frankish Greece from any feudal duties, concomitant to its subordination, via the Latin Patriarch of Constantinople, solely to the Pope.