Question:  Franciscus Titelmans  was a Flemish Franciscan scholar, an opponent of what Dutch Renaissance humanist, Catholic priest, social critic, teacher, and theologian?

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Erasmus Prize: The Erasmus Prize is an annual prize awarded by the board of the Praemium Erasmianum Foundation to individuals or institutions that have made exceptional contributions to culture, society, or social science in Europe and the rest of the world.  It is one of Europe's most distinguished recognitions.  The prize is named after Desiderius Erasmus, the Dutch Renaissance humanist.

Franciscus Titelmans: Franciscus Titelmans (also Frans Titelmans; Latin: "Franciscus Titelmannus" or "Hasseltensis") (1502–1537) was a Flemish Franciscan scholar, an opponent of Erasmus.

Peter Fehlner: Peter Fehlner, also known as Peter Damien Mary Fehlner, is a Catholic priest.  He is a member of the Roman Catholic Order of Friars Minor Conventual.  After his Franciscan and theological formation and several years of ministry in this Order, he joined the Franciscan Friars of the Immaculate during some years, but he has recently professed again the Rule and the Constitutions of ancient Franciscan Conventual Order.  Fehlner is a theologian and mariologist.  In 2014, he began serving as rector of the Shrine of Our Lady of Guadalupe in La Crosse, Wisconsin.  He is also a professor of theology in the Franciscans' Institute of Ecclesiastical Studies, the Immaculatum (STIM) in Frigento, Italy.  A scholar in the Franciscan tradition of theology, he focuses primarily on the philosophical and theological traditions of St. Bonaventure, Bl.  John Duns Scotus and St. Maximilian Kolbe.

Portrait of Erasmus (Dürer): Portrait of Erasmus is a late period 1526 woodcut engraving by the German artist Albrecht Dürer.  The portrait was commissioned by the Dutch Renaissance humanist Desiderius Erasmus of Rotterdam (c.1466-69 – 1536) when the two men met in the Netherlands between 1520 and 1521.  Erasmus was then at the height of his renown, and required representations of himself to accompany his writings.  It was not completed until some six years later, but proceeds a number of preparatory sketches made at that time.

Erasmus Hall High School: Erasmus Hall High School was a four-year public high school located at 899-925 Flatbush Avenue between Church and Snyder Avenues in the Flatbush neighborhood of the New York City borough of Brooklyn.  It was founded in 1786 as Erasmus Hall Academy, a private institution of higher learning named for the scholar Desiderius Erasmus, known as Erasmus of Rotterdam, a Dutch Renaissance humanist and Catholic Christian theologian.  The school was the first secondary school chartered by the New York State Regents.  The clapboard-sided, Georgian-Federal-style building, constructed on land donated by the Flatbush Reformed Dutch Church, was turned over to the public school system in 1896.

Erasmus (train): The Erasmus was an express train that linked The Hague, the Dutch seat of Government, with Munich in Germany.  The train was named after the Dutch Renaissance humanist Desiderius Erasmus.

Donation of Constantine: The Donation of Constantine ( ) is a forged Roman imperial decree by which the 4th century emperor Constantine the Great supposedly transferred authority over Rome and the western part of the Roman Empire to the Pope.  Composed probably in the 8th century, it was used, especially in the 13th century, in support of claims of political authority by the papacy.  Lorenzo Valla, an Italian Catholic priest and Renaissance humanist, is credited with first exposing the forgery with solid philological arguments in 1439–1440, although the document's authenticity had been repeatedly contested since 1001.

Erasmus: Desiderius Erasmus Roterodamus ( ; 28 October 1466 – 12 July 1536), known as Erasmus or Erasmus of Rotterdam, was a Dutch Renaissance humanist, Catholic priest, social critic, teacher, and theologian.

Willibald Pirckheimer: Willibald Pirckheimer (5 December 1470 – 22 December 1530) was a German Renaissance lawyer, author and Renaissance humanist, a wealthy and prominent figure in Nuremberg in the 16th century, and a member of the governing City Council for two periods.  He was the closest friend of the artist Albrecht Dürer, who made a number of portraits of him, and a close friend of the great humanist and theologian Erasmus.

Franciscus Portus: Franciscus Portus (Latin; Greek: Φραγκίσκος Πόρτος, Italian: Francesco Porto) (1511 – 1581) was a Greek-Italian Renaissance humanist and classical scholar.

Supporting paragraphs: Franciscus Titelmans Erasmus
Answer: Desiderius Erasmus Roterodamus