"(My favourite fact about the city of Dijon: it is home to La Confrérie de la Moutarde de Dijon, or the Dijon Mustard Brotherhood. They wear medieval-style, yellow waistcoats and capes, and hold conferences and debates to defend and promote mustard, according to the brotherhood’s website.)" Bonus fun fact: Canada is the world's leading exporter of mustard seeds (don't tell Trump).

My jar of mustard was so spicy it made my eyes water and sent me on an obsessive quest to find out why
The mustard was the same brand I buy every time, Maille Dijon Originale, but it was much, much stronger than usual.
thestar.com