A champion is the victor in a challenge, contest or competition. There can be a territorial pyramid of championships, e.g. local, regional/provincial/state, national, continental and world championships, and even further (artificial) divisions at one or more of these levels, as in association football. Their champions can be accordingly styled, e.g. national champion, world champion.
Final Day of the 2009 season, Fitzroy celebrate their first championship in nine years.
Cambridge Spinners celebrate their back to back championship in 2016.
Trial by combat was a method of Germanic law to settle accusations in the absence of witnesses or a confession in which two parties in dispute fought in single combat; the winner of the fight was proclaimed to be right. In essence, it was a judicially sanctioned duel. It remained in use throughout the European Middle Ages, gradually disappearing in the course of the 16th century.
A 1540s depiction of a judicial combat in Augsburg in 1409, between Marshal Wilhelm von Dornsberg and Theodor Haschenacker. Dornsberg's sword broke early in the duel, but he proceeded to kill Haschenacker with his own sword.
Depiction of a judicial combat in the Dresden codex of the Sachsenspiegel (early to mid-14th century), illustrating the provision that the two combatants must "share the sun", i.e. align themselves perpendicular to the Sun so that neither has an advantage.
Depiction of a judicial duel between a man and a woman by Hans Talhoffer (Ms.Thott.290.2º, Folio 80r, 1459)
Kalaripayattu Combat