That lion Crest is reminiscent of the Crest of Sir William Marshal. A well forgotten man, was born of Norman descent, and into the world of British Royalty. His father was the royal stablemaster in the 12th century. William was the knight who bested Richard the Lionheart in battle and even became regent of England when the young king was too young to rule. I count him among my ancestors, as did the outlaw J. W. James.
However, as noted, the rampant lion was used by many in their own family crest in the Scottish hill country, England, and in Normandy. My guess at the knife would be Chinese, because of the lack of other markings. From those pics, it doesnt appear to be a bad knife