This is not so easy. See   [[http://en.wikipedia.org/wiki/Reichsthaler]]

Consider 1000 Reichsthaler: What were they worth in Breslau, 1825-1827, and today?

Perhaps this linked calculator for 'Kaufkraft' (purchasing power) is sufficient for a rough estimate: [[http://fredriks.de/HVV/kaufkraft.htm|'Kaufkraft als Massstab fuer den Wert des Geldes']] (Purchasing power as a scale for money's worth)

The red 'Kaufkraftrechner' (calculator as in calculating machines ...) has a lower register which shows the following results:

1 Reichstaler = 3 Mark  (historical risky relation, but I have no other possibility for the moment)
That would mean: 1000 Reichsthaler = 3000 Mark

Now click on the 'Kaufkraftrechner':
upper window: fill in 3000 Mark and calculate ('Kaufwert berechnen')

1) 1794-1818 (~the time Mendel was conceiving the bequest; also ~Napoleon's time):
For 2012 this will give in the lower window 48'779,61 Euro

2) 1819-1838 (~the time of the file's date,1825-1827):
For 2012 this will give in the lower window 58'160,30 Euro

So it is reasonable to estimate a current equivalent of, say,  50,000 Euro, this having no pretentions to being any more than the roughest informed guess.

[Source: Expat]

(:Research: L :)
//Pages linked to this page//
(:pagelist link={$FullName} fmt=#title:)