From 1417 to his death he was secretary to the Emperor Sigismund.

Emperor Sigismund saw his enemies expanding in almost every direction.

In spite of a personal visit from the emperor Sigismund, he would not consider resignation.

Several testaments have been approved by the Emperor Sigismund and also his wife.

This election followed the death of Emperor Sigismund on December 9, 1437.

Henry X remained at the service of the Emperor Sigismund.

Ambundii convinced Emperor Sigismund to give priority to the election.

The Emperor Sigismund is killed in the fighting.

In 1388, Eisenstadt was given the right to hold markets by Emperor Sigismund.

Later Vytautas agreed the solution to be made by Emperor Sigismund.