Marc Sleen
Marcel Honoree Nestor (ridder) Neels (30 December 1922 – 6 November 2016), known as Marc Sleen, was a Belgian comics artist. Sleen was one of the most celebrated comics artists in his home country. His work is admired for its absurd and sometimes satirical comedy, as well for the fact that he worked completely singlehandedly without any assistance for 45 years on end, a feat that landed him a spot in The Guinness Book of Records in 1992.
Also recorded as Marcel Neels · M.H.N. Neels
Marc Sleen

Michiel Hendryckx · CC BY-SA 3.0
- Birth Name
- Marcel Neels
- Born
- 30 December 1922
- Birthplace
- Gentbrugge, East Flanders, Belgium
- Died
- 6 November 2016
- Place of death
- Hoeilaart, Flemish Brabant, Belgium
- Nationality
- Belgian
- Awards
- Full list
- Full name
- Marcel Honoree Nestor Neels.
- Occupation
- comics artist, illustrator, courtroom sketch artist, television director, editorial cartoonist, sports cartoonist and graphic artist.
- Fields
- young adult literature.
- Honours
- Decoration of the Flemish Community, honorary citizen of Brussels, Bronzen Adhemar and Prix Saint-Michel.
- Languages
- French and Dutch.
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Documentary summary
Marcel Honoree Nestor (ridder) Neels (30 December 1922 – 6 November 2016), known as Marc Sleen, was a Belgian comics artist. Sleen was one of the most celebrated comics artists in his home country. His work is admired for its absurd and sometimes satirical comedy, as well for the fact that he worked completely singlehandedly without any assistance for 45 years on end, a feat that landed him a spot in The Guinness Book of Records in 1992.
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gnd · 1235823121 · wikidata · Q2540575 · wikipedia · Marc Sleen
In this article
Biography
Biography
(This feat has been surpassed since by Jim Russell's The Potts, which ran for 62 years.) He was one of the few comics artists in Belgium who had a museum dedicated to his work.
The recorded working language is French and Dutch. The field of work recorded is young adult literature. Employment is recorded with De Standaard, Het Nieuwsblad and Het Volk. Work by Marc Sleen is recorded in the collections of Beaux-Arts Mons and Collection Thomas Neirynck. Distinctions recorded are Decoration of the Flemish Community, honorary citizen of Brussels, Bronzen Adhemar and Prix Saint-Michel.

Marc Sleen (left), an official in the middle, Willy Maltaite alias Will (right) during the Golden Pencils award ceremony at the Middelkerke casino in August 1997.
Lafloche

Marc Sleen au casino de Middelkerke pour la remise des prix du festival en août 1997
Lafloche
Key facts
Key facts
• Birth Name — Marcel Neels • Born — 30 December 1922 • Birthplace — Gentbrugge, East Flanders, Belgium • Died — 6 November 2016 • Place of death — Hoeilaart, Flemish Brabant, Belgium • Nationality — Belgian • Area — Artist, writer • Alias — Marc Sleen • Notable Works — Nero De Lustige Kapoentjes Piet Fluwijn en Bolleke Oktaaf Keunink Doris Dobbel De Ronde van Frankrijk • Awards — Full list
Biography
Biography
Marc Sleen was born as Marcel Neels in Gentbrugge, near Ghent. He studied drawing in Ghent. During the Second World War he was imprisoned by Nazi soldiers in Fort Breendonk because his brother worked for the resistance. He was tortured and put in the death cell, but saved by the fact that after D-Day the officers moved all the prisoners to a different prison, where he could escape. In 1944 he started to work as a political caricaturist in the Flemish newspaper De Standaard. He also contributed illustrations and short comics for the newspaper and the youth supplement, and made illustrations and his first comics for the magazine Ons Volk. He was also a courtroom sketch artist for a while. In October 1947, Marc Sleen started a new series, The adventures of detective Van Zwam in the newspaper De Nieuwe Gids. In the first adventure Detective Van Zwam encounters a fool who thinks he is emperor Nero. After he regains his senses, they continue calling him Nero and slowly he became the star of the series. The name changes accordingly to The adventures of detective Van Zwam and Nero and after nine stories to The adventures of Nero and co. The series appeared for 55 years with a rhythm of two strips every day. This was typical for the Flemish comic tradition, as with Suske en Wiske (Spike and Suzy). Nero became well known for its ironic humour and references to current affairs. For instance, in the album, Het Vredesoffensief Van Nero ("Nero's Peace Offensive") (1951), Nero visits Joseph Stalin to make him drink an elixir that will make him a pacifist. Besides Nero Sleen drew several other comic strip series, many of them gag-a-day comics, for magazines like t Kapoentje and Ons Volkske. Among the most well known were Piet Fluwijn en Bolleke (1947–1965), Doris Dobbel (1950–1965), Oktaaf Keunink (1952–1965) and De Lustige Kapoentjes. Sleen also drew a daily cartoon during the Tour de France from 1947 until 1965, called De Ronde van Frankrijk. • Illustration — Wall painting in Antwerp showing the main characters of Nero Between 1950 and 1965 Sleen published Nero in Het Volk, after which he moved to De Standaard. This caused a huge copyright controversy, as several newspapers fought over the rights over his syndicated comics. Thousands of readers switched from Het Volk to De Standaard, just to follow his adventures in the newspaper. After that switch, he dropped all other series and devoted himself solely to Nero. From 1992 to 2002, he was aided by Dirk Stallaert, a versatile Flemish comic artist, and at first the intention was to let Stallaert continue the series after Marc Sleen retired. But in the end, Stallaert didn't feel ready to continue it alone, and at the end of 2002, at the age of 80, Marc Sleen ended his career as a comics artist. Sleen designed album covers for records by Flemish actor, comedian and singer Jef Burm. Burm was a former school mate of his.
TV documentary work
TV documentary work
Marc Sleen was also known as a traveller and animal friend. He made 35 safaris to Africa between 1961 and 1991, making more than 20 documentaries for the Vlaamse Radio- en Televisieomroep, mostly for the TV show "Allemaal Beestjes". A few books and records about his safaris appeared as well. Many of his comics featured animals and countries he has visited.
Major comics series
Major comics series
His comics were drawn rapidly in a "flexible and loose" style. They can be divided in one-page or one-strip gag series like Piet Fluwijn en Bolleke and De Lustige Kapoentjes, and humorous adventure comics of book length (generally between 32 and 64 pages) like Stropke en Flopke and Nero. • Piet Fluwijn (1944–1945) • Piet Fluwijn en Bolleke (1945–1965) (also known as The adventures of a father and his son) • Pollopof (1946–1952) • Stropke en Flopke (1946–1950) • Nero (1947–2002) • De Ronde van Frankrijk ("the annual Tour de France". (Each year Marc Sleen drew a daily strip about the cycling event) (1947–1964) • De Lustige Kapoentjes (1950–1965) (continued by other artists including Hurey and Kabou) • Doris Dobbel (1950–1967) • Fonske (1951–1960) • Oktaaf Keunink (1952–1965)
Identity
Identity
Marc Sleen is recorded with the occupation courtroom sketch artist. Recorded with the occupation editorial cartoonist. Recorded with the occupation television director. Recorded as comics artist, illustrator, courtroom sketch artist, television director and editorial cartoonist.
Life and career
Dated record
Life and career
Explore 1922–2016
The full dated record · 3 entries
1922
Marc Sleen was born on 30 December 1922.
1947
The Adventures of Nero is dated 1947.
2016
Marc Sleen died at Hoeilaart.
Places
Named by the record
Places
Only places the record itself states, plotted where the house gazetteer settles their coordinates. Nothing is inferred from a name or a nationality.
Gentbrugge.
Birth place
Hoeilaart.
Death place
Legacy
Marc Sleen is commonly considered one of the big names of the Flemish comics, together with Willy Vandersteen and Jef Nys. In 2005 he was selected as one of the 111 nominees for the title "The Greatest Belgian" (De Grootste Belg) in the Flemish edition. He ended in 48th place. On 19 June 2009, a museum dedicated to his life and career was opened in Brussels: the Marc Sleen Museum. Both Marc Sleen as well as King Albert II of Belgium were present. The king was a fan of Nero since his youth and both he and Baudouin of Belgium learned Dutch by reading "Nero". Sleen died at the age of 93 on the evening of 6 November 2016. He was buried in the Campo Santo in Ghent. On 1 January 2030, all comic characters by Marc Sleen will officially enter public domain.
Context
Primary material
Context
The circumstances in which Marc Sleen stands.
Documents and archives
Primary material
Documents and archives
authority record
- Wikidata, structured authority record Q2540575: Marc Sleen
General reference · Wikidata
reference work
- “Marc Sleen”, English Wikipedia, consulted as further reading
Reputable secondary · Wikipedia
Awards
• Illustration — Statue of Nero in Hoeilaart. It was specifically placed in front of the old train station (nowadays a bar), because this is Nero's home in the series since the album De Verschrikkelijke Tweeling (The Horrible Twin (1990)). Sleen also lived in Hoeilaart. • 1974: Prix Saint-Michel for best comical story, Brussels, Belgium. The award went to Het Lachvirus (The Laughing Virus). • 1981: Honorary citizen of Hulshout, Belgium • 1984: Honorary citizen of Sint-Niklaas, Belgium • 1989: Stamp of Nero issued by the Belgian Post. • 1993: Gouden Adhemar at Strip Turnhout, Belgium • 1995: Best comic of 1994 by the "Belgische Kamer van stripexperten" (Belgian assembly of comic experts) • 1997: Knighted (Ridder) by king Albert II of Belgium • 2005: Honorary citizen of Brussels • 2008: Honorary citizen of Turnhout • 2011: Honorary citizen of Hoeilaart Statues of his creations have been erected in Turnhout (1991), Hoeilaart (1994) and Middelkerke (1997). An exclusive museum opposite the Belgian Centre for Comic Strip Art is devoted to his work.
Notes from the source article
Cited by Wikipedia
Notes from the source article
These works are cited by the source article, in its own numbering. They are recorded as its citations, not as sources VALÉORINE has verified.
- 1.Magnussen, Anne. Comics & Culture: Analytical and Theoretical Approaches to Comics. Museum Tusculanum Press. 102. 2000. 9788772895802.
- 2.Marc Sleen. Lambiek Comiclopedia.
- 3.Longest running cartoon strip by a single artist. Guinness World Records.
- 4.Nieuwsblad. Marc Sleen krijgt eigen museum in Brussel.
- 5.De Weyer, Geert (2005). "Marc Sleen". In België gestript, pp. 160–161. Tielt: Lannoo.
- 6.Gazet van Antwerpen. BIOGRAFIE. Marc Sleen, geestelijke vader van dagbladverschijnsel Nero. 7 November 2016.
- 7.Jef Burm - Allo Sjoe. Discogs. 1966.
- 8.Sint-Niklaas in de ban van 'Het B-Gevaar' | Stad Sint-Niklaas.
- 9.Ruell, Niels. Marc Sleen Museum ingehuldigd. Bruzz. 18 June 2009.
- 10.Horsten, Toon. Striptekenaar Marc Sleen is overleden. De Standarrd. 7 November 2016.
- 11.Marc Sleen.
- 12.Voorwaarden - MarcSleen.be. MarcSleen.be.
- 13.Marc Sleens striphelden vanaf 2025 rechtenvrij Algemeen Stripspeciaalzaak. www.stripspeciaalzaak.be. 2024-09-28.
- 14.Nero. 16 March 2015.
- 15.Striptekenaar Marc Sleen wordt ereburger van Hoeilaart. De Standaard. 26 May 2011.
- 16.Foundation Marc Sleen, Brussels — Presentation. www.marc-sleen.be.
- 17.Les murs de la promenade BD en détail. Visit Brussels.
References
Citations
References
Each reference names the institution holding it, so a reader may go to the document itself.
authority record
Secondary witnessreference work
Secondary witness
Further particulars
Held on the record
Further particulars
Open the remaining particulars
Marc Sleen was recorded at birth as Marcel Honoree Nestor Neels. He also worked under the name Marc Sleen. The authorities additionally record the headings Marcel Neels and M.H.N. His recorded languages were French and Dutch. Sleen worked in young adult literature. He was employed by De Standaard, Het Nieuwsblad, Het Volk, Samedi-Jeunesse and Ons volkske: geïllustreerd weekblad. Sleen received Decoration of the Flemish Community, honorary citizen of Brussels, Bronzen Adhemar and Prix Saint-Michel.
Identity and origins
Career and activity
Recognition and collections
Work by Marc Sleen is
Beaux-Arts Mons and Collection Thomas Neirynck
The Encyclopedia exists whether or not anything is for sale. Corrections are recorded rather than overwritten, and every version of this record is kept. Published 16 August 2026.
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