1635 in Belgium

:Monarch – Philip IV, King of Spain and Duke of Brabant, of Luxembourg, etc.

:Governor General – Cardinal-Infante Ferdinand of Austria

:Prince-Bishop – Ferdinand of Bavaria

;January

• 28 January – Joyous entry into Ghent of Cardinal-Infante Ferdinand of Austria as new governor general, Gaspar de Crayer playing a key role in the monumental decorations.

;February

• Panel of experts at University of Louvain decrees that tobacco has no nutritional value.Alain de Gueldre, et al., eds., Chronique de la Belgique (RTL, 1987), p. 388.
• 8 February – French-Dutch treaty to partition the Spanish Netherlands, preliminary to the Franco-Spanish War (1635–59).

;March

• 26 March – Ferdinand seizes Trier and has Archbishop-Elector Philipp Christoph von Sötern imprisoned.

;April

• 11 April – Formal representations from Balthazar Gerbier, English resident in Brussels, about Dunkirkers interfering with English shipping.
• 17 April – Joyous entry into Antwerp of Cardinal-Infante Ferdinand of Austria as new governor general, Gaspar Gevartius co-ordinating the reception and Peter Paul Rubens playing a key role in the monumental decorations.P. Génard, "Intrede van den Prins-Kardinaal Ferdinand van Spanje te Antwerpen, op 17 april 1635", Antwerpsch Archievenblad, 13 (1876), pp. 296–309.

;May

• 2 May – Great Council of Mechelen condemns Guillaume de Melun, Prince of Espinoy, in absentia as a traitor for his role in the Conspiracy of Nobles (1632).Copie des Arrests rendus au grand Conseil de sa Majesté le 2. de May 1635, contre le Prince d'Espinoy, & Charles de Pienne (Mechelen, Henry Jaye, 1635), [https://books.google.com/books?id=pPNGAAAAcAAJ available on Google Books].
• 20 May – Battle of Les Avins: French forces defeat a detachment of the Army of Flanders commanded by Thomas of Savoy, sent to prevent them linking up with the Dutch.

;June

• 2 June – French-Dutch manifesto calls on inhabitants of the Spanish Netherlands to rise against their government.
• 8 June – Sack of Tienen by combined French-Dutch forces.
• 21 June – French-Dutch army crosses the Dijle near Overijse.Olaf van Nimwegen, The Dutch Army and the Military Revolutions, 1588-1688, translated by Andrew May (Woodbridge, 2010), p. 247. [https://books.google.com/books?isbn=1843835754 Partial preview on Google Books].
• 24 June – Siege of Leuven commences.

;July

• 4 July – Siege of Leuven raised.
• 22 July – Gaspard Nemius consecrated bishop of Antwerp in Antwerp Cathedral.Léopold Devillers, "Nemius (Gaspard)", Biographie Nationale de Belgique, [http://www.academieroyale.be/academie/documents/FichierPDFBiographieNationaleTome2057.pdf vol. 15], (Brussels, 1899), 583-584.
• 28 July – Army of Flanders takes Schenkenschans.Olaf van Nimwegen, The Dutch Army and the Military Revolutions, 1588-1688, translated by Andrew May (Woodbridge, 2010), p. 248. [https://books.google.com/books?isbn=1843835754 Partial preview on Google Books].

• Robert Bellarmine, An ample Declaration of the Christian Doctrine, translated by R. H. (Mechelen, Henry Jaye).
• Cornelius Jansen, Mars Gallicus ([Leuven, Jacobus Zegers]). [https://books.google.com/books?id=ASyIzzzw8LUC On Google Books]
• Discours sur la rencontre du temps et des affaires presente par un vieulx cavalier francois a monseigneur le duc Dorleans (Brussels, Jean Pepermans). [https://books.google.com/books?id=xTdQAAAAcAAJ Available on Google Books]
• Lettre de sa Majesté Imperiale a son agent a Rome, contenant les raisons pour lesquelles il a faict la paix avec le Duc de Saxe M. DC. XXXV (Brussels, Jean Pepermans).

• Peter Paul Rubens
• The Dance of the Villagers, now in the Prado Museum, Madrid
• The Village Fête, now in the Louvre Museum, Paris
• Helena Fourment with Her Son Frans, now in the Alte Pinakothek, Munich
• The Feast of Venus, now in the Kunsthistorisches Museum, Vienna

;Date uncertain

• Francis van Bossuit, sculptor (died 1692)
• Daniel Danielis, composer (died 1696)
• Joannes Florentius a Kempis, composer (died after 1711)
• Joseph Roettiers, medallist (died 1703)

;January

• 10 January – Alexander Farnese, Prince of Parma, Governor of the Habsburg Netherlands 1678–1682 (died 1689)

;March

• 10 March – Jan van Buken, painter (died 1690)

;August

• 30 August – Pieter Spierinckx, painter (died 1711)

;Date uncertain

• Jean-Baptiste Gramaye (born 1579), historian
• Marquis of Aytona (born 1586), former acting governor-general of the Spanish Netherlands
• William Trumbull (born around 1575), former English ambassador to Brussels

;February

• 5 February – Joos de Momper (born 1564), painter

;October

• on or shortly after 24 October – Willem van Nieulandt II (born 1584), painter and poet

;November

• 11 November – Paul Boudot (born 1571), bishop

;December

• 2 December – Godfried Vereycken (born 1558), physician

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{{Europe topic|1635 in}}