Simplify the following text for a Grade 7 native English-speaking person.
Original: On 24 November 1615 , they were married by proxy in Burgos while Louis 's sister , Elizabeth , and Anne 's brother , Philip IV of Spain , were married by proxy in Bordeaux .
Simplified: Shortly after , on November 1615 , Anne and Louis were married separately , but to one another . This is called a proxy marriage .