Amadeus of Portugal, born João de Menezes da Silva, was a Portuguese nobleman who became first a Hieronymite monk, then left that life to become a friar of the Franciscan Order. Later he became a reformer of that religious order, which led to his founding of a distinct branch of the Friars Minor that was named after him, but later suppressed by the Pope in order to unite them into one great family of Friars Minor Observants (1568).

The Order of the Immaculate Conception, abbreviated OIC and also known as the Conceptionists, is a Catholic religious order of Pontifical Right for nuns founded by Saint Beatrice of Silva. For some years, they followed the Poor Clares Rule, but in 1511 they were recognized as a separate religious order, taking a new rule and the name of Order of the Immaculate Conception.