Originally Posted by zelda_pinwheel
also, little trivia for you, "la livre" means the pound in french (not to be confused with "le livre", the book), this name comes from a monetary system which was used by france until the revolution and
in... the UK, until 1971.
1 livre = 20 sous or 240 deniers, and 1 sou = 12 deniers
And the pound involved was a pound (Troy) of Silver (not gold). The ratio slowly changed, back and forth, over time between gold and silver...
(And money changers charged a fee for the conversion, just like today....)