Karl I of Liechtenstein
Karl I of Liechtenstein (1569–1627) was the elder son of Baron Hartmann II and the first prince of his house. He converted to Catholicism in 1599 and served Rudolf II as Obersthofmeister until 1607, but in the Habsburg succession quarrel he backed Archduke Matthias against the emperor and helped him seize power; a grateful Matthias made him a hereditary prince in 1608.
He acquired the Silesian duchies of Troppau and Jägerndorf. For supporting Ferdinand II at the White Mountain he became vice-regent of Bohemia in 1622, rewarded with confiscated rebel estates. He died in Prague in 1627.