Originally a Mass at which the celebrant was aided by clerics of all the different ecclesiastical orders. Now could refer to a Mass at which the celebrant is aided by the deacon and sub-deacon, observing the complete ritual of the Church for the Mass. Such a Mass is called Solemn when celebrated by a priest, Pontifical if celebrated by a bishop, Papal when celebrated by the pope.
- “Solemn Mass”. . CatholicSaints.Info. 19 August 2010. Web. 25 April 2017. <http://catholicsaints.info/solemn-mass/>