Today is Martinmas, the Feast of St Martin of Tours.
The Collect from the Roman Breviary:
O Lord God, who seest that we put not our trust in anything that we do : mercifully grant ; that, by the intercession of blessed Martin, thy Confessor and Bishop, we may be defended against all adversity. Through.
The Proper Lessons can be found here.
From the Catholic Encyclopædia.
From the Medieval Saints Group at Yahoo!
An article on the tradition of St Martin's Lent fro Medieval Saints.