The person who seeks a remedy in chancery by suit, commonly called a plaintiff, and the person against whom the remedy is sought, usually denominated the defendant, are the parties to a suit in equity. 2. It is of the utmost importance, that there should be proper parties; and therefore no rules connected with the science of equity pleading, are so necessary to be attentively considered and observed, as those which relate to the persons who are to be made parties. to a suit, for when a mistake in this respect is discovered at the hearing of the cause, it may sometimes be attended with defeat, and will, at least, be followed by delay and expense. 3 John. Ch. R. 555; 1 Hopk. Ch. R. 566; 10 Wheat. R. 152. 3. A brief sketch will be here given by considering, 1. Who may be plaintiffs. 2. who may be made defendants. 3. The number of the parties.