What is Advocatus Est, Ad Quem Pertinet Jus Advocationis Alicujus Ecclesiae, Ut Ad Ecclesiam, Nomine Proprio, Non Alieno, Possit Praesentare?

Legal Definition
A patron is he to whom appertains the right of presentation to a church, in such a manner that he may present to such a church in his own name, and not in the name of another. Co. Litt. 119.
-- Black's Law Dictionary
Legal Definition
A patron is one who has the right of presentation to a church and who can present to the church in his own name and not that of another.
-- Ballentine's Law Dictionary