Conversation so far:
Did Constantin Stere live in Siberia?
In 1885, he was deported to Siberia, serving a three-year term.
What did Constantin Stere have to do with Siberia?
In 1885, he was deported to Siberia, serving a three-year term.

Question: What did he do to get sent to Siberia?
Self-contained rewrite: What did Constantin Stere do to get sent to Siberia?