Conversation so far:
How many children Carl Nielsen have?
Nielsen had five children, two of them illegitimate.
What were their names?
a son, Carl August Nielsen.
Who did he marry?
Anne Marie Brodersen.
What year did they get married?
10 May 1891.
Are there any other interesting aspects about this article?
an illegitimate daughter was born.
What was her name?
Rachel Siegmann.

Question: Where did they stay at?
Self-contained rewrite: Where did Carl Nielsen and Anne Marie Brodersen stay at?