The term 'Seven-Time Wimbledon Champion' refers to two of the greatest tennis players of all time: Steffi Graf and Pete Sampras. Graf, a German professional tennis player, won seven Wimbledon singles titles during her career, making her the most successful female player in the tournament's history. Sampras, an American professional tennis player, also won seven Wimbledon singles titles, making him the most successful male player in the tournament's history.