Giovanni or Jean Cossa (probably 29 March 1400 - 30 October 1476) was lieutenant general of Provence, seneschal of Rene of Anjou and grand seneschal of Provence.^[1]

• Martyrdom of Saint Maurice and his Comrades

• (in French) Jean Favier (2008). Le roi René. Fayard. p. 742. ISBN 978-2-213-63480-7.
• Dizionario Biografico degli Italiani, Volume 30: Cosattini–Crispolto (in Italian). Rome: Istituto dell'Enciclopedia Italiana. 1984. ISBN 978-8-81200032-6.