Can we draw the following hypothesis from the context?

Context:

(in German: Sey-Inquart; 22 July 189216 October 1946) was an Austrian Nazi politician who served as Chancellor of Austria for two days from 11 to 13 March 1938 before the "Anschluss" annexation of Austria by Nazi Germany, signing the constitutional law as acting head of state upon the resignation of President Wilhelm Miklas.

Hypothesis: Nazi Germany became a part of Austria
Yes