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this Year seems impossible to me - it must be (much) earlier because in this Treaty Frederick Roger accepts to undertake a Cruisade. He first started a Cruisade shortly in Sep.1227 - this one was stopped short after for a Epidemic. Than he started again in June 1228 - this one was than succesfull and ended in Feb.1229 with a Treaty between Al-Kamil and Frederick. So, in both Cases is the Year 1230 much too late for the Treaty of San Germano. As far as I know the Treaty was signed 1225. Please forgive me my bad english -- Hartmann Schedel (talk) 17:27, 16 December 2008 (UTC)[reply]