claim: Stephen Moyer played the lead role of Prince Valiant in the 1997 movie Prince Valiant.
evidence: Silybum -LRB- milk thistle -RRB- is a genus of two species of thistles in the -LRB- daisy family -RRB- .. thistles. Cynareae. daisy family. Asteraceae. The plants are native to the Mediterranean regions of Europe , North Africa , and the Middle East .. Mediterranean. Mediterranean. Europe. Europe. North Africa. North Africa. Middle East. Middle East. One species has been introduced elsewhere , including in North America .. The name `` milk thistle '' derives from a feature of the leaves , which are prominently banded with splashes of white .. Historically , these milky bands were said to be Mother Mary 's milk , and this is the origin of another common name , St. Mary 's thistle .. The most widespread species is Silybum marianum .. Silybum marianum. Silybum marianum. Many years of research show the active flavanoid-lignan -LRB- flavanolignan -RRB- group of constituents , called silymarin , contained only in the seed shell has liver-protective and regenerative properties , as well as antioxidant effects .. flavanoid. flavanoid. lignan. lignan. silymarin. silymarin. antioxidant. antioxidant. The liver-protective effects were known and written about in ancient times , leading to the active chemical , pharmacological , and safety research beginning in Germany in the 1950s .. Clinical use for a variety of liver ailments , such as hepatitis , has also prospered throughout many parts of the world .. hepatitis. hepatitis