Who was the king of France that was canonized as a saint and known for justice to the point of sitting under a tree to hear cases brought to him?
King Louis IX of France, also known as Saint Louis, was the monarch known for his commitment to justice and humility. He was canonized as a saint after his death in 1270 for his piety and sense of fairness, including his practice of sitting under an oak tree to hear and resolve disputes brought before him.