[2] It was agreed the Provisional Executive Committee formed following the putsch would last one month when a replacement cabinet could be found.

[2][4] In this position, Karl appealed to Switzerland in order to begin recovery from the economic devastation World War I brought to the country.

In addition, he appealed to Felix Calonder to begin negotiations between the two countries for the eventual establishment of a customs union.

[4] He signed the constitution of Liechtenstein on behalf of Johann II alongside Josef Ospelt as a government representative on 5 October 1921.

He married on 31 March 1921 at the civil registry in Stuttgart Elizabeth, Princess of Urach and Countess of Württemberg.