Date: February 10, 2026
Venue: Universidade Católica Portuguesa, Lisbon (Exhibition Room, 2nd floor of the Library building)

Born on February 10, 1926, António Domingues de Sousa Costa dedicated his work to Portuguese medieval history and, above all, to ecclesiastical history. Over the course of more than four decades, he went through Portuguese and foreign archives, with particular emphasis on the Vatican Apostolic Archives, identifying and transcribing tens of thousands of documents relating to Portugal. This effort resulted in numerous publications, including the Monumenta Portugaliae Vaticana. This colloquium is intended as a tribute to this historian, promoting reflection and dialogue on the themes he cultivated.

Free entry upon prior registration (until 12 noon on 09/02)

Registration

Poster

PROGRAM

• 09h30 | Reception

• 10h00 | Opening
  Paulo Fontes (UCP-CEHR)
  João Luís Fontes (IEM-NOVA FCSH)
  Inês Amorim (CITCEM-UP)
  Friar José João Quintã Pereira (OFM)
  André Moutinho Rodrigues (Organization)

• 10:20 a.m. | SESSION 1
  Moderator: André Moutinho Rodrigues (CITCEM-UP; LaMOP – U. Paris 1)
  Friar António Domingues Sousa Costa: A Franciscan in Habit and Works
  Isidro Lamelas (OFM)

• 10:40 a.m.
  Presentation of the project to publish the John XXI Bulletin[provisional title]
  Mário Farelo (UMinho – Lab2PT; UCP-CEHR)
  Francesco Renzi (CITCEM-UP; UCP-CEHR)
  João Luís Fontes (IEM-NOVA FCSH; UCP-CEHR)

• 11h00 | DebatePause
• 11h40 | SESSION 2
  Moderator: Mário Farelo (UMinho – Lab2PT; UCP-CEHR)
  A different kind of research at the Archivo Segreto Vaticano: the company and guidance of Prof. Sousa Costa
  Maria de Lurdes Rosa (NOVA FCSH; UCP-CEHR)

• 12h00
  Portugal in the Registra Supplicationuman imperfect monument
  André Moutinho Rodrigues (CITCEM-UP; LaMOP – U. Paris 1)

• 12h20 | Debate

Free lunch

• 14h30 | Session 3
  Moderator: João Luís Fontes (IEM-NOVA FCSH; UCP-CEHR)
  Relations between Church and State at the end of the 12th century and in the first half of the 13th century: between the work of A.D. de Sousa Costa and the present day
  Maria João Branco (NOVA FCSH)

• 14h50
  The forerunners of the bishops of Lamego and Viseu in the 15th century
  Hermínia Vilar (UÉ)

• 15h10
  The Episcopal Chancery of Lisbon (12th to 14th centuries)
  Saul António Gomes (UC)

• 15h30 | Debate

Pause

• 16h00 | SESSION 4
  Moderator: Maria Filomena Andrade (UAb; UCP-CEHR)
  The genesis of Franciscan observance in the 14th century: from the wilderness to the convent, from eremitical itinerancy to cenobitic urbanity
  Vítor Teixeira (UFP)

• 16h20
  The regranting community of São Salvador de Grijó in the crisis of the late Middle Ages
  Luís Carlos Amaral (UP)

• 16h40 | DEBATE
• 16h40 | CLOSURE

Organization

• Center for the Study of Religious History
• Center for Transdisciplinary Research on Culture, Space and Memory (CITCEM-UP)
• Institute of Medieval Studies (IEM-NOVA FCSH)
• Portuguese Province of the Franciscan Order (OFM)

Support

• Vatican Apostolic Archive
• Foundation for Science and Technology (FCT)

Organizing Committee

• Francesco Renzi (CITCEM-UP; UCP-CEHR)
• Isidro Lamelas (OFM)
• João Luís Fontes (IEM-NOVA FCSH; UCP-CEHR)
• Maria Filomena Andrade (UAb; UCP-CEHR)
• Mário Farelo (UMinho – Lab2PT; UCP-CEHR)
• André Moutinho Rodrigues (CITCEM-UP; LaMOP – U. Paris 1)

This work is financed by national funds through FCT – Fundação para a Ciência e a Tecnologia, I.P., under the project UID/6205/2025 with the DOI identifier https://doi.org/10.54499/UID/06205/2025.

Sounds and/or images may be captured during the sessions. These may be used in communication or promotional materials for Universidade Católica Portuguesa.