Duplex Querela

Lat. (A double complaint, or double quarrel.) In English ecclesiastical law. A complaint in the nature of an appeal, made by a clerk, or other person, to the archbishop of the against an inferior ordinary, for Srovince, claying or refusing to do justice in some ecclesiastical cause; as to give sentence, institute a clerk, &c.

Cowell. Blofint. Tomlins. 3 Bl. Com. 247.

So called because most commonly made against both the judge, and him at whose suit justice is denied or delayed.

CowelL