Potter Stewart,
Beacon Theaters, Inc. v. Westover…
“ If the basic issues in an action for declaratory relief are of a kind traditionally cognizable in equity, e.g., a suit for cancellation of a written instrument, the declaratory judgment is not a 'remedy at law.' [5] If, on the other hand, the issues arise in a context traditionally cognizable at common law, the right to a jury trial of course remains unimpaired, even though the only relief demanded is a declaratory judgment. ”
