1) Jan van Eyck 
Arnolfini Double Portrait
oil on panel

2)  Detail, Arnolfini Portrait, 1434

3) A L’il Bit for the Braincells:

period Dutch cursing

I found this list of typical Dutch (North Burgundian at that time) cursing.
They originate between 1200 to 1500, being in the medieval period.
So if you have need for your aph-Neth to wish one of his neighbors the worst this is a good place to start. I guess they were used in the whole of Burgundy so his sister may have used them accordingly XD.
Most popular subjects for cursing that time were; sex, alcoholics, shit, piss or insanity. (These days most are about diseases I guess)

List of period cursing:

hennetaster vrouwengek, iemand die zijn handen niet van de kippetjes af kan houden.
EN; chickengrabber, somebody who can’t keep himself from touching girls.

leverslokker een gulzigaard.
EN; kidneyslugger, somebody who indulges in eating and drinking

lueghentapper leugenaar.
EN; lyer

cattenghespuijs nietswaardig, verachtelijk volk.
EN; cat riff-raff, a bunch of worthless despicable people

ic schyte in ulieden ik schijt op u
EN; I shit on you (plural)

eeraftreckere schennispleger, iemand die een ander zedelijk onteert.
EN; somebody who lacks morality.
It’s hard to translate. These days aftrekken means wanking off,
but the word eer=honour. So it’s more that a person takes away somebody’s honour. I don’t think they’d call somebody really a wanker personally.

duyvelspecht scheldnaam voor Spaanse soldaten (combinatie van duivel en specht).
EN; devils woodpecker (this cursing was used for the Spanish exclusively)

platbroeck impotente man, bij wie de broek maar niet bol wil gaan staan.
EN; flattrousers, impotent man, his trousers won’t bulge

hoerenzuene hoerenjong.
EN; son of a whore

avondtronc van het Franse avoutron: een door overspel verkregen kind, dus een hoerenzuene (zie hiervoor).
EN; eveningdranc, a kid who’s conceived by adultery most probably a son of a whore.

slutpese impotente man (slut betekent onmachtig). Tegenwoordig denken we bij slut eerder aan het fenomeen ‘vloerduyve’, zie verderop in deze lijst).
EN; weak prick, impotent man

vloerduyve hoer.
EN; floor pigeon (i don’t know man, it makes me laugh too!) whore

nicker iemand die met duivels praat.
EN, somebody who speaks with devils.

Here’s a bunch more:

 “schelm, smeerkanis, adderengebroed, liederlijk mensch, serpent, canaille, deugniet, mormel, feeks, hondsvot, scharminkel, snoodaard, schoelje, gajes,  bandiet, duivelsjong, schobbejak, parvenu, naarling, lapsalver, dekzwabber, jakkepoes, kinderbeul, ploert, gladjakker, farizeeër, zeeschuimer, geboefte, booswicht, ghy drommelsche pagatter, helleveeg, karonje, doerak, spitsboef en vervloeckt gespuys.

Huguenin Jacquin, a 14th century Burgundian

French archaeologists from INRAP are currently excavating a medieval residence dating to the second half of the 14th century, which was abandoned suddenly at the beginning of the 15th century.

Excavations at Cestres, a hamlet in the district of Saint-Martin-du-Mont, thirty kilometres to the north-east of Dijon, have revealed a large stone building with a limestone flagged roof, typical of residences on the Burgundy plateaus. The building began life as a rectangular structure measuring 19 x 8 m. The interior space is arranged around an imposing central hearth which is surrounded by large stone slabs.

To the south of this area, a further room was added and was found to contain ceramic pitchers and stone mortars, suggesting a kitchen. The architecture and impressive fireplace would have set this residence apart from the modest Burgundian habitations present in the High Middle Ages.

The archaeological artefacts that were recovered seem to corroborate this impression of wealth. Read more.