Marie-Henri-Adrien-Aymard count d'Ursel (1849-1939) was a Belgian Noble Courtier of the Vatican.
By mother's side he was a grandson of Marie-Hippolyte de Gueulluy, 2nd Marquess of Rumigny and a descendant of Édouard Mortier, Duke of Trévise. He was the elder brother of Hippolyte d'Ursel. After his marriage to countess Marie du Chastel de la Howarderie he became the resident of Moulbaix Castle. The castle was abandoned by his children and became famous for its ruins.
He served in the Belgian army and was active in the artillery. He became secret Chamberlain (Cameriére di Spade e Cappa di Sua. Santita.) of Leo XIII. During his days in the Vatican he was in service of the papal nuncio.
He was also:
- "Archived copy". Archived from the original on 2018-01-07. Retrieved 2018-01-07.CS1 maint: archived copy as title (link)
- Revue tournaisienne: histoire, archéologie, art, folklore, Volumes 3-4
- Revue missionaire des Jésuites belges -1911
- Organisation, programme et règlement, rapports et communications ..., Volume 1 / Unione cooperative editrice, 1903