In 1863 he invited 100 theologians to meet at Mechelen and discuss the question which the liberals Lamennais and Lacordaire had raised in France, namely, the attitude that should be assumed by the Roman Catholic Church towards modern ideas.

He had eagerly entered into the plans of his friends, Lamennais and Lacordaire, and he collaborated with them in the newspaper, L ' Avenir.

The virulence of “ L ’ Avenir ,” and particularly of Lamennais and Lacordaire, provoked the French Bishops to form a tribunal against the editors of the periodical.

On the 30 December Lacordaire, Lamennais and Montalembert, the “ Pilgrims of Freedom ,” went to Rome so as to seek the recourse of Pope Gregory XVI, to whom they presented a dissertation composed by Lacordaire.

In response, Lamennais, Montalembert and Lacordaire suspended their work and in November 1831 set out to Rome to obtain the approval of Pope Gregory XVI.

Lacordaire and Montalembert departed immediately, but Lamennais stayed on until Gregory's letter to the Polish bishops, which denounced the Polish revolution against the Tsar, dashed his last hopes.

The most prominent name identified with this new style of preaching was that of the Dominican Lacordaire, who, for a time, with Montalembert, was associate editor with de Lamennais of " L ' Avenir ".

The movement of Liberal Catholicism was initiated in France by Hugues Felicité Robert de Lamennais with the support of Jean-Baptiste Henri Lacordaire, Charles Forbes René de Montalembert and Olympe-Philippe Gerbet, Bishop of Perpignan, while a parallel movement arose in Belgium, led by François Antoine Marie Constantin de Méan et de Beaurieux, Archbishop of Mechelen, and his vicar general Engelbert Sterckx.

In response, Lamennais, Montalembert and Lacordaire suspended their work and in November 1831 set out to Rome to obtain the approval of Pope Gregory XVI.

During the years immediately before the Revolution of 1830, de Ram, who was much influenced by Lamennais, was active in bringing about a coalition of Liberals and Catholics against the Dutch government established by the Powers

Despite meeting with influential politicians such as Lamartine and Lamennais, the France of Louis-Philippe also remained neutral.

Doellinger also entered into relations with the well-known French Liberal Catholic Lamennais, whose views on the reconciliation of the Roman Catholic Church with the principles of modern society ( liberalism ) and the French Revolution had aroused much suspicion in Ultramontane, mainly Jesuit-dominated, circles.

He severed his connection with Père Hyacinthe Loyson as he had with Lamennais and made the submission expected of him to the council.

There he discovered the ultramontane theories of Bonald, de Maistre, and Félicité de Lamennais.

He had long resisted the views of Father Hugues Felicité Robert de Lamennais, " Felix ", one of the leading intellectuals concerned with French Catholic youth, but in May 1830, Lamennais converted him to his liberal version of ultramontanism, that is, the adherence to the absolute universal authority of the papacy in opposition to nationalist and secularist ideas.

He, Lamennais, Olympe-Philippe Gerbet, and the young Viscount Charles de Montalembert, who became one of his closest friends, allied themselves with the July Revolution.

In 1834 he also challenged Lamennais, who rather than accept what he saw as Rome's reactionary absolutism, publicly renounced his priesthood and published “ Les Paroles d ’ un Croyant ” ( Words of a Believer ,) a vociferous republican polemic against the established social order, denouncing what he now saw as the conspiracy of kings and priests against the people.

He condemned the pride of Lamennais and charged him with Protestantism, accusing him of having wanted to place the authority of the human race above that of the Church.

She was a Russian convert to Catholicism who had a famous salon in Paris which Montalembert, the Earl of Falloux, and the Reverend Father Félix Lamennais also frequented.

*" Considérations sur le système philosophique de M. de Lamennais "

Hugues-Félicité Robert de Lamennais ( June 19, 1782-February 27, 1854 ), was a French priest, philosopher, and political theorist.

Félicité de Lamennais was born at Saint-Malo on June 19, 1782, the son of a wealthy merchant.

Lamennais lost his mother at the age of five and as a result, he and his brother Jean-Marie were sent for education to an uncle, Robert des Saudrais at La Chênaie, an estate near Saint-Malo.

Lamennais devoted most of the following year to translating Louis de Blois's Speculum Monachorum into French, which he published in 1809 under the title.

In 1811 Lamennais received the tonsure and became professor of mathematics in an ecclesiastical college founded by his brother at Saint-Malo.

Lamennais hailed the Bourbon restoration of 1814, which he witnessed in Paris, because he saw Louis XVIII as a force for religious regeneration.

Lamennais denounced religious indifference by the state and toleration while advocating for a restoration of the pre-Revolutionary authority of the Catholic Church.

Lamennais visited Rome at the pope's request.

However, when Villèle became the chief supporter of absolute monarchy, Lamennais withdrew his support and started two rival organs, and.

In January 1834, at the encouragement of the young Frédéric Ozanam, the founder the Society of Saint Vincent de Paul ( a charitable organization ,) Father Lacordaire started a series of lectures at the Collège Stanislas.

In order to defend the freedom of education, outside of the control of the universities, conforming to their interpretation of the Charter of 1830, the editors of “ L ’ Avenir ” founded in December 1830 the General Society for the defense of religious freedom, and on the 9 May 1831 Lacordaire and Montalembert opened a free school, rue des Beaux-Arts, which was shut down by the police two days later.

After a trial taking place in front of the Chambre des Pairs ( Chamber of Peers ,) where Lacordaire defended himself, but failed to prevent the permanent closure of the school, “ L ’ Avenir ” was suspended by its founders on the 15 November 1831.

Even before this condemnation, Lacordaire distanced himself from his companions, and returned to Paris where he took up again his functions as a Chaplain at the Convent of Visitations.

Through Ampère, Ozanam had contact with leaders of the neo-Catholic movement, such as François-René de Chateaubriand, Jean-Baptiste Henri Lacordaire, and Charles Forbes René de Montalembert.

The conferences of Notre-Dame-de-Paris were inaugurated by Père Lacordaire.

The cathedral is renowned for its Lent sermons founded by the famous Dominican Jean-Baptiste Henri Lacordaire in the 1860s.

In 1832 Lammenais and his friends Lacordaire and Montalembert, visited Germany, obtaining considerable sympathy in their attempts to bring about a modification of the Roman Catholic attitude to modern problems and politico-liberal principles.

Jean-Baptiste Henri-Dominique Lacordaire ( May 12, 1802 – November 21, 1861 ), often styled Henri-Dominique Lacordaire, was a French ecclesiastic, preacher, journalist and political activist.

The son of a former doctor in the French navy, Henri Lacordaire was born on the 12 May 1802 at Recey-sur-Ource ( Côte-d ' Or ) and raised in Dijon by his mother, Anne Dugied, the daughter of a lawyer at the Parliament of Bourgogne who was widowed at an early age, when her husband died in 1806.

Henri had three brothers, one of whom was the entomologist Jean Théodore Lacordaire.

At that time, Lacordaire was considering missionary work in the United States, but the revolutionary events of 1830 kept him in France.

Lacordaire particularly distinguished himself by writing articles asking for freedom of expression, freedom of the press, and freedom of education.

Lacordaire, for his part, then further distanced himself from Lammenais, expressed his disappointment at the consequences of the Revolution of 1830, and proclaimed his continued faithfulness to the Church of Rome.

However, Monseigneur de Quélen, the Archbishop of Paris, confirmed his support for Lacordaire, and asked him to preach a Lenten series in 1835 at the Cathedral of Notre-Dame in Paris, as part of the Notre-Dame Lectures specially aimed at the catechesis of Christian youth, which had also been inaugurated at the behest of his friend Ozanam.

Lacordaire ’ s first lecture took place on the 8 March 1835, and was met with wide acclaim.

Lacordaire, aware of the need to continue his theological studies and reinforce his hierarchical alliances, retreated to Rome to study with the Jesuits.

In 1837, seeing the example of Guéranger's restoration of the Benedictines, Lacordaire decided to enter the Dominican Order despite the loss of certain personal freedoms that would entail, and to re-establish the Dominicans in France.