Troyes
48.2989°N 4.0781°E · Q5489
3 English words in this atlas trace back to Troyes. It sits in France.
Gold is weighed in units named for a market town in Champagne.
Troy weight is generally traced to the fairs at Troyes in northeastern France, a hub of medieval European trade, and English records use the system from the 14th century. The grain began as the weight of a barleycorn and is the one unit that troy and avoirdupois still share exactly.
Gold is priced in an ounce named for a French market town, not ancient Troy.
The weight is generally traced to the medieval trade fairs at Troyes in Champagne, where merchants from across Europe needed one agreed standard. That link is the conventional account rather than a documented one, and rival derivations pointing at English towns have been proposed and largely dismissed.
A pound of gold weighs less than a pound of feathers.
The system is generally traced to Troyes in Champagne, whose medieval trade fairs set weights and measures for merchants from across Europe. A troy ounce is heavier than an ordinary ounce, but only twelve of them make the pound, so a troy pound falls well short of an avoirdupois one.