The Civil Procedure Rules 1998

[F1Provisions applicable where two or more persons are jointly entitled to a remedyE+W

19.3(1) [F2All persons] jointly entitled to the remedy [F3claimed by a claimant] must be parties unless the court orders otherwise.

(2) If any [F4such] person does not agree to be a claimant, he must be made a defendant, unless the court orders otherwise.

(3) This rule does not apply in probate proceedings.]