His father, Georg Karl Benjamin Ritschl (1783-1858), became in 1810 pastor at the church of St Mary in Berlin, and from 1827 to 1854 was general superintendent and evangelical bishop of Pomerania.
These ruins were discovered by Adam Renders in 1868 and explored by Karl Mauch in 1871.
He was present at the battle of Weisser Berg (near Prague), where the hopes of the elector palatine were blasted (November 8, 1620), passed the winter with the army in southern Bohemia, and next year served in Hungary under Karl Bonaventura de Longueval, Graf von Buquoy or Boucquoi (1571-1621).
The fragments are collected in the Didot edition of Arrian by Karl Muller.
Here it is right to speak of Karl Pearson as a pioneer of notable importance.