After serving under Stadion in Galicia, he was in 1848, after the outbreak of the revolution, appointed president of the administration and acting Stadthalter in Bohemia.
Sir John Moore and the statesmen of Austria - the heroic Stadion at their head - failed in their enterprise; but at least they frustrated the determined effort of Napoleon to stamp out the national movement in the Iberian Peninsula.
Gay Lussac investigated chloric acid; Stadion discovered perchloric acid, since more fully studied by G.
Serullas and Roscoe; Davy and Stadion investigated chlorine peroxide, formed by treating potassium chlorate with sulphuric acid.
In Berlin he had been intimate with the Austrian ambassador, Count Stadion, whose good offices procured him an introduction to the emperor Francis.
In 1809, on the outbreak of war between Austria and France, Gentz was for the first time actively employed by the Austrian government under Stadion; he drafted the proclamation announcing the declaration of war (15th of April), and during the continuance of hostilities his pen was ceaselessly employed.
But the peace of 1810 and the fall of Stadion once more dashed his hopes, and, disillusioned and "hellishly blasé," he once more retired to comparative inactivity at Prague.
On the 13th of April 1846 an imperial decree abolished some of the more burdensome feudal obligations; but this concession was greeted with so fierce an outcry, as an authoritative endorsement of the atrocities, that it was again revoked, and Count Franz von Stadion was sent to restore order in Galicia.
In Bohemia, where the attempt to hold elections for the Frankfort parliament had broken down on the opposition of the Czechs and the conservative German aristocracy, a separate constitution had been proclaimed on the 8th of April; on March the 23rd the election by the diet of Agram of Baron Joseph Jellachich as ban of Croatia was confirmed, as a concession to the agitation among the southern Sla y s; on the 18th of March Count Stadion had proclaimed a new con stitution for Galicia.
Besides these excavated monuments, the Stadion; the enceinte of fortifications erected by Lysimachus, which runs from the tower called the "Prison of St Paul" and right along the crests of the Bulbul (Prion) and Panajir hills; the round monument miscalled the "Tomb of St Luke"; and the Opistholeprian gymnasium near the Magnesian gate, are worthy of attention.
Count Stadion began it in Galicia, where, before bombarding insurgent Cracow into submission (April 26), he had won over the Ruthenian peasants by the abolition of feudal dues and by forwarding a petition to the emperor for the official recognition of their language alongside Polish.