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Theodorus Jacobsz Vallensis / Van Dalen (1612-1673). Surgeon. Married Agatha van Beresteijn, and became mayor in 1672, 1673. May well have inherited the important collection of paintings owned by his father Jacob Vallensis (1570-1644). They lived at Oude Delft between Nieuwstraat and Oude Kerk, probably at number 134 or 138 - as did his son Cornelis (1648-1692) who lived there "across the Gemeenlandshuis" as well. Active in city government from 1647 onwards; alderman in 1657 and 1660; mayor in 1673.

Carel Fabritius did a mural painting for him showing illusion in spatial effects. Van Hoogstraten (1678) writes about the illusionistic murals which Fabritius made in Delft in the house of " the art-loving late Dr Valentius" and elsewhere, Valentius being the latinized name of Dr. Vallensis. Another Fabritius mural was in the house of Nicolaes Dichter.

Note. GAD Huizenprotocol II 874; III 927. Internet archives: married Agatha van Beresteijn in 1643. "Headman of Guild", mentioned in GAD Guild book, Fol. 33. Genealogische Encyclopedie I, 266. Samuel van Hoogstraten, Hooge Schoole p. 274, in the chapter on Deurzigtkunde (Perspective); "Fabritius did wonders in this, as in the Delft house of Valentinus, the late art lover". Alderman: Boitet 1729 list III z****. In 1637 Vallensis was called to the sick bed of to Susanna van Baerle, wife of Constantijn Huygens, see Eyffinger, exh.cat. Kon. Bibl. 1987, p. 117.

This page forms part of a large encyclopedic site on Delft. Research by Drs. Kees Kaldenbach (email). A full presentation is on view at johannesvermeer.info.

Launched 16 February 2005; Last update March 1, 2017. More info in the RKD site.

Doublecheck - which Vallensis at Van Baerle sick bed?