You can't get married if you have a sex change
http://www.independent.com.mt/news.asp?newsitemid=70056
6/1/2008
"A Maltese woman who was born a man, and whose birth certificate has been changed so as to – in the words of the court – protect her privacy, is being prevented from getting married. This case has been going on for some time now, since the director of the Public Registry refused to publish the banns for her intended marriage."