Society of Jesus - Wikipedia

On September 27, 1540, the Society of Jesus (Jesuits) founded by Ignatius Loyola was confirmed by Pope Paul III in Rome. From the article:

"On 15 August 1534, Ignatius of Loyola (born Íñigo López de Loyola), a Spaniard from the Basque city of Loyola, and six others mostly of Castilian origin, all students at the University of Paris,[23] met in Montmartre outside Paris, in a crypt beneath the church of Saint Denis, now Saint Pierre de Montmartre, to pronounce the religious vows of poverty, chastity, and obedience.[24] Ignatius' six companions were: Francisco Xavier from Navarre (modern Spain), Alfonso Salmeron, Diego Laínez, Nicolás Bobadilla from Castile (modern Spain), Peter Faber from Savoy, and Simão Rodrigues from Portugal.[25] The meeting has been commemorated in the Martyrium of Saint Denis, Montmartre. They called themselves the Compañía de Jesús, and also Amigos en El Señor or "Friends in the Lord", because they felt "they were placed together by Christ." The name "company" had echoes of the military (reflecting perhaps Ignatius' background as Captain in the Spanish army) as well as of discipleship (the "companions" of Jesus). The Spanish "company" would be translated into Latin as societas like in socius, a partner or comrade. From this came "Society of Jesus" (SJ) by which they would be known more widely.[26]

Religious orders established in the medieval era were named after particular men: Francis of Assisi (Franciscans), Domingo de Guzmán, later canonized as St Dominic (Dominicans); and Augustine of Hippo (Augustinians). Ignatius of Loyola and his followers appropriated the name of Jesus for their new order, provoking resentment by other religious who considered it presumptuous. The resentment was recorded by Jesuit José de Acosta of a conversation with the Archbishop of Santo Domingo.[27] In the words of one historian: "The use of the name Jesus gave great offense. Both on the Continent and in England, it was denounced as blasphemous; petitions were sent to kings and to civil and ecclesiastical tribunals to have it changed; and even Pope Sixtus V had signed a Brief to do away with it." But nothing came of all the opposition; there were already congregations named after the Trinity and as "God's daughters".[28]

In 1537, the seven travelled to Italy to seek papal approval for their order. Pope Paul III gave them a commendation, and permitted them to be ordained priests. These initial steps led to the official founding in 1540.

They were ordained in Venice by the bishop of Arbe (24 June). They devoted themselves to preaching and charitable work in Italy. The Italian War of 1535-1538 renewed between Charles V, Holy Roman Emperor, Venice, the Pope, and the Ottoman Empire, had rendered any journey to Jerusalem impossible.

Again in 1540, they presented the project to Paul III. After months of dispute, a congregation of cardinals reported favourably upon the Constitution presented, and Paul III confirmed the order through the bull Regimini militantis ecclesiae ("To the Government of the Church Militant"), on 27 September 1540. This is the founding document of the Society of Jesus as an official Catholic religious order. Ignatius was chosen as the first Superior General. Paul III's bull had limited the number of its members to sixty. This limitation was removed through the bull Exposcit debitum of Julius III in 1550.[29]"