Bach and Liszt
Besides dear old Franz, who used a variety of dramatic devices and practices to get women swooning over him, even to the point of becoming an abbé, there was the monster Sergei Rachmaninoff, who had hands big enough to pick up a basketball with the fingers of one hand and wrote accordingly for stretches of 11 or more keys, and also hated to write in any key having less than 5 sharps.