obviously Andre's address is not public knowledge, but you can send mail toAndre Rieu André Rieu Productions B.V. Postbus 2244 NL-6201 HA Maastricht Netherlands Or you can write in his guestbook...
None of Andre's siblings play in his orchestra. For a few years his youngest brother Jean Phillipe worked with him on compositions and choreography, but since 2005 Jean Phillipe works on his own....