A biography of Henry II, , has been ascribed to him; but the evidence for attributing this to him is not decisive. He wrote a mathematical treatise on establishing the volume of a sphere, , which he dedicated to Pope Sylvester II, who was himself a noted mathematician.
There exists a biography of Henry II,  that has been connected to him; however, the evidence supporting this connection is not definitive. He wrote a mathematical treatise on calculating the volume of a sphere, , which he presented to Pope Sylvester II, who was also an accomplished mathematician.