Conjoined twins?

Has there ever been conjoined multiple births, such as conjoined triplets? I mean if there is that must be extremeley rare, as just multiple identical siblings, i think, are relatively rare as it is. Also would it be possible for conjoined twins to have a triplet that managed to seperate in the womb? I'm not... show more Has there ever been conjoined multiple births, such as conjoined triplets? I mean if there is that must be extremeley rare, as just multiple identical siblings, i think, are relatively rare as it is.
Also would it be possible for conjoined twins to have a triplet that managed to seperate in the womb?
I'm not sure how well i've asked my question, its not an easy one to try and explain how i mean in text!
Please ask if you don't understand and i will attempt to modify it :D thanx
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