Not precisely, though we did discuss starting a number of year before 1220.
Would 1205 be agreable to everyone?
That's the year after the sack of Constantinople, so House Jerbiton is in turmoil and people might not react to our covenant getting settled right away. It is also 2 years before the next Tribunal meeting. Four years before the Albigensian Crusade.
Plenty of historical and Hermetic events that can be weaved into our stories.