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 linked to him; nonetheless, the evidence backing this connection is not definitive. He authored a mathematical work on calculating the volume of a sphere, , which he presented to Pope Sylvester II, who was renowned for his own mathematical expertise.