Canonum De Ius Positivum
Canons of Positive Law
VII. Law
7.12 Defense of Law
Article 313 - Presentation
Canon 3295 (link)
There are two forms of appointment of an actor being Agent or Advocate:
(i) An Agent is an Administrator appointed by the man or woman by their right and knowledge as General Executor over any trust concerning their body, mind, spirit, name and affairs; or
(ii) An Advocate is a competent legal representative appointed to speak and argue on behalf of the man or woman.
Canon 3296 (link)