A small excursion into the monetary history at the end of the 18th century, which is not easy because many currencies existed at that time only as a computing currency and some were only coined with a few copies at all. In the meantime, not a few princes over the course of the agreed gold or silver content and / or the alloy of the coins.
So much for the monetary activities of the light-forms of this time. In the same way, there was still so many obscure rascals. It happened the way it had to. New, secure currencies (according to salary / alloy requirements) were introduced, and the exchange rates were fixed accordingly. Then our neighbors of Upper-Rhine, the Gauls, established a new old currency in the course of their head-turning revolution.
The formerly abolished Livre (there were problems, because the Livre was heavier in the north, and one counted with northern and southern Livre) was reintroduced. New, different - only the name was the same.
And all this, a few years later, to tilt this currency and introduce the franc (note of the scribe: the spiders, the Gauls! - as we see below, the Germans are also spinning!). Only old currencies were not always withdrawn from circulation. They ran parallel. But times to the countries and their currency systems (I count here only the most important ones):
France: 1 Louis d'Or (or Louisdor), divided into 24 livres, one livre consisted of 20 sous or 240 deniers, a sou = 12 deniers. One Livre was one pound.
It is difficult to give an equivalent value in modern currencies, as economic conditions have changed fundamentally, and the wage and price structure has changed fundamentally. Based on the data (22 karat gold content with a weight between 6.7 and 8.1 grammes), a pure material value of approx. 210-250 Euro results from today's (as of August 2017) gold price.
Germany was somewhat complicated, as in the north German Reichshalern (Rthl) in southern Germany was counted and traded with guilders (Fl).
In the middle of the 17th century the Reichstaler was introduced to an accounting coin worth 24 good groschen = 36 mariengroschen (= 90 cruisers). 1821-1871 Prussia introduces a new Reichstaler or Thaler with 30 Silbergroschen to 12 Kupferpfennige each. In 1871-1873, the taler was replaced by the Goldmark in each German country at a hundred pence, which corresponded to ⅓ thaler.
Since it is now really complicated in the South (I would be scho e bissle annerscht) I take the liberty to copy a part of Wiki.
The gulden appears as an accounting coin for the first time in the Reichsabschied of 1551. From the new Reichsguldiner were marked 864/127 from the fine Cologne mark (233.856 g) silver. Since, however, he had been set up for 72 cruisers, a fine Cologne mark had a value of "ten florences, twelve cruisers, and a fourth-quarter of a crucifix, 17/127 ains pfennigs," in other words 864/127 Guldiner contained silver in the value of 1026/127 (account) guilders. Until the 19th century, it remained the most important banknote in South and West Germany.
Around 1700 a florin had the purchasing power, which corresponds in 2009 40-50 euro.
Information pages on the topic: