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In case you were wondering, this is where I call home now!
Proudly wearing my Stroopwafel t-shirt at Wikimania in London
Babel user information
en-N This user has a native understanding of English.
nl-4 Deze gebruiker beheerst het Nederlands als ware het zijn moedertaal.
fr-2 Cette utilisatrice dispose de connaissances intermédiaires en français.
de-1 Diese Benutzerin beherrscht Deutsch auf grundlegendem Niveau.
ru-1 Эта участница владеет русским языком на начальном уровне.
es-1 Esta usuaria tiene un conocimiento básico del español.
Users by language

Welcome to my Wikidata userpage[edit]

I am active in the Visual Arts project and "Sum of all paintings" project. I made the overview page for Hofstede de Groot. I work mostly on Dutch 17th-century art, such as getting more Frans Hals paintings on Wikipedia, but I am also known for my listeria lists of painters or paintings. These lists are generated from Wikidata, where painters and paintings are linked via various properties to external sources, such as GLAM databases, dictionaries of biography, or art catalogs. I have been active working on catalogs of paintings and matching these to paintings of galleries that include paintings; see The Art Gallery of Jan Gildemeester Jansz (Q17337965), The Gallery of Cornelis van der Geest (Q19960951), or Archduke Leopold Wilhelm in his Gallery in Brussels (Q19960950) as a 17th-century view of the first art catalog Theatrum pictorium (Q26709924).

I am also a member of the WMNL Gendergap workgroup and kept a Gendergap report in my userspace (later moved to a WikiProject for Women) which I have updated a few times using Wikidata queries.

I enjoy trying out new tools to help visualize art through the centuries. I can recommend the query service, the mapping tool and histropedia. On my wishlist are 1) way to link a painting item directly to specific mentions in old Wikisource entries (such as the Italian wikisource version of Vasari, the grandfather of art historians, but also illustrations of people, places or concepts), and 2) a slider tool on commons to slide an old painting across a mirror-image engraving of it or an modern x-ray version of it. Other suggestions I have had have been made into tasks on Phabricator (such as T99899 for looking up painters or paintings by ID numbers, or T120780 for media viewer improvements when the media is a painting or other artwork already on Wikidata).

In 2020 I helped organize Wikidata:Eighth Birthday/India/Datathon/Sum of all Indian paintings. Here is the October 11th 2020 intro on YouTube.

Wikidata as an art hub[edit]

Wikidata looks fairly sparse and can seem very confusing to art lovers who expect to see full color representations of artworks. Wikidata is not illustrated, and for artworks this is irrelevant anyway, because Wikidata has lots of data about artworks that cannot be hosted on Wikimedia Commons due to copyright restrictions. Wikidata may or may not contain an artwork, depending on (1) whether the artwork is in a collection that has been included as part of a project, such as an art catalog or a museum collection, or (2) whether the artwork has a Wikipedia article in some Wikipedia language. Once in Wikidata, the item for the artwork may undergo several revisions, as data is added to it by various projects. A typical example is updates to the label for each Wikipedia that creates an article for the artwork, whereby the new label is added to the proper language label. Sometimes the record is updated because the artwork falls under the radar of some other project, such as an effort to gather all paintings of waterfalls, or all artworks in a specific city, or all artworks from a particular catalog. To understand the benefits of working on items in Wikidata, it may help to follow the project I am a member of: Wikidata:WikiProject sum of all paintings. This project has lots of talk pages in Wikidata namespace, mostly auto-generated "listeria" lists like Wikidata:WikiProject sum of all paintings/Copies and Wikidata:WikiProject sum of all paintings/Pendant portraits.

Where are the paintings?[edit]

  • First of all, you can count how many we have today:
  ?item wdt:P31 wd:Q3305213 .
Try it!
  • Paintings on Wikidata (with Wikipedia articles) per year of creation:
SELECT ?year (COUNT(?year) AS ?count) WHERE {
  ?item wdt:P31 wd:Q3305213;
    wdt:P571 ?inception.
  BIND(YEAR(?inception) AS ?year)
  FILTER(?year < 1900 )
  FILTER(?year > 1400 )
  ?article schema:about ?item;
    schema:isPartOf ?wiki.
  FILTER(REGEX(STR(?wiki), ""))
GROUP BY ?year
ORDER BY ?year
Try it!
SELECT DISTINCT ?collection ?geoloc where {
  ?item wdt:P31 wd:Q3305213 .  # any painting 
  ?item wdt:P195 ?collection .
  ?collection wdt:P625 ?geoloc . #coordonnées géo
Try it!

Where were art historians born?[edit]

SELECT ?arthistorianLabel ?coordinates WHERE {
  ?arthistorian wdt:P31 wd:Q5 ;
                wdt:P19 ?birthPlace ;
                wdt:P106 wd:Q1792450 .
  ?birthPlace wdt:P625 ?coordinates .
  SERVICE wikibase:label { bd:serviceParam wikibase:language "[AUTO_LANGUAGE],en". }
Try it!

My work on Dutch & Flemish painters[edit]

Painters listed in Houbraken's dictionary of painters (bubble chart of names):

SELECT ?painter ?painterLabel (COUNT(DISTINCT ?painting) AS ?count) WHERE {
  ?painting wdt:P31 wd:Q3305213 .
  ?painting wdt:P170 ?painter .
  ?painter wdt:P1343 wd:Q7737966.
   SERVICE wikibase:label { bd:serviceParam wikibase:language "en" }      
} GROUP BY ?painter ?painterLabel HAVING (?count > 4 )
Try it!

Painter's birthplaces on a map, who have paintings listed in RKDimages (Q17299580) :

SELECT ?painterLabel ?coordinates WHERE {
  ?painting wdt:P31 wd:Q3305213.
  ?painting wdt:P170 ?painter. 
  ?painting wdt:P350 ?rkd.
  ?painter wdt:P31 wd:Q5 ;
                wdt:P19 ?birthPlace ;
                wdt:P106 wd:Q1028181 .
  ?birthPlace wdt:P625 ?coordinates .
Try it!


From February - July 2016 I was hired by the TED staff as a "Wikipedian in Residence" along with Andy to handle their TED talk data donation to "Wikipedia" which you can observe here. More information is available on Outreach.


Handy links for Magnus posse members[edit]