A contemporary account states "Il y a eu de si violents coups de talon que la barre du gouvernail a fait sauter le tillac de sa chambre, malgré six barreaux en plusieurs endroits, et qui fit déterminer Mr. de Castellan a L’aller couper luy meme." which roughly translates to "There were such violent blows to the rudder, the tiller burst through the deck of its room, despite six bars holding it in place, and Mr. Castellan made the decision to cut it."

(From the document linked at the bottom of this page: http://www.histoire-genealogie.com/spip.php?article1533&lang...)