Can. 1135
© Libreria Editrice Vaticana Source: vatican.va
Etsi actor vel pars conventa procuratorem vel advocatum constituit, semper tamen tenetur in iudicio ipse adesse ad praescriptum iuris vel iudicis.
Wording unchanged since the Code took effect in 1991.
Read the whole title TITULUS XXIVDe Iudiciis in Genere 1055–1184