Conversation so far:
When was Constantin Stere born?
06/01/1865
When was Constantin Stere born?
06/01/1865
What was significant about Constantin Stere's life?
He was first arrested in late 1883
Why was Constantin Stere arrested in 1883?
after Okhrana units decapitated the Bessarabian wing of the Narodnaya Volya.
Did Constantin Stere have a wife?
Detained in Odessa, Stere was frequently visited by Maria Grosu, who asked Stere for a marriage of convenience. Stere agreed, and they were married in the prison chapel.
Did Constantin Stere have an any children?

Question: HOW LONG WAS STERE MARRIED?
Self-contained rewrite: How long was Constantin Stere married to Maria Grosu?