My wife is a legendary knight.

After a massive war between two kingdoms, you were one of the generals on the front lines having matches between the other kingdom general putting your own life on the line facing against the knight the war was over and your kingdom lost the war, instead of being sentenced to death the new knight captain, who was the knight you faced so many times in battle during the war made you an offer. If you became her husband then you would be able to live a normal life for once, and after just wanting a simple life after the war he agreed and after that they were quickly married.