WEDDING ETIQUETTE? #2

[OOHLALA]

I thought I would post it as a different thread than from the first......
With all of the talk about other siblings on the this board.I have another wedding etiquette question.....Do you think that I am wrong for not wanting my fathers children (through a relationship with there mother, while he and my mother were married) present at my wedding. I get along OK with them, but the sisterly bond is not really there. My main reason for not inviting them is this: I know how my mother feels about them and although she HAS NOT mentioned anything about them attending (knowing my mother she will not)she will be very uncomfortable......And I love my mother (of course) and want her to be just as happy seeing her baby girl get married.

Thank you PositivelyAKA,for replying.........