Battle of Tinchebray

The battle of Tinchebray (or Tinchebrai) was fought September 28, 1106 in the town of Tinchebray[?], Normandy, between an invading force led by Henry I of England, and his older brother Robert Curthose, the Duke of Normandy. Henry's knights won a decisive victory, capturing Robert and imprisoning him in England until his death. England and Normandy remained under a single ruler for some years thereafter.