1911 Encyclopædia Britannica/Cognizance

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COGNIZANCE (Lat. cognoscere, to know), knowledge, notice, especially judicial notice, the right of trying or considering a case judicially, the exercise of jurisdiction by a court of law. In heraldry a “cognizance” is an emblem, badge or device, used as a distinguishing mark by the body of retainers of a royal or noble house.