Originally Posted by CyrilVladisla
Throughout her life and the various title changes, Princess Mary, Countess of Harewood signed her name as "Mary".
However, on her and Henry's marriage certificate, would she not by law be required to sign her first Christian name of Victoria first?
There was similar discussion about this a few months ago elsewhere. The Law doesn't really come into unless it is found that someone other than Princess Mary fraudulently signed the marriage certificate, which would involve witnesses being complicit also.
In short, Mary need only sign such document in her own hand and preferably in the normal manner she would have signed any other document.