He was present at the siege of Rouen, and the king committed to him personally the negotiations for the surrender of the city in January 1419 and for the marriage of Katherine.
On the 17th of May 1517 the bishop of Dunkeld proceeded with Albany to France to conduct the negotiations which ended in the treaty of Rouen.
On the continent of Europe they often lead out of the interior of the church and are enclosed with tracery, as at Rouen or Strassburg.
Roland himself escaped secretly to shelter in Rouen.
When Roland heard of his wife's condemnation, he wandered some miles from his refuge in Rouen; maddened by despair and grief, he wrote a few words expressive of his horror at those massacres which could only be inspired by the enemies of France, protesting that "from the moment when I learned that they had murdered my wife I would no longer remain in a world stained with enemies."