They aren't brothers so they don't have the same mom.
There has never been a mention of The Undertakers mother on WWE television.
Because undertakers real brothers name was Kane
They are not related! Kane real name is Glenn Jacobs Undertakers real name is Mark Calaway
Kane
ask Kane
at one point Kane imatated the undertaker
Kane wins The undertakers father turns on him
Kane is Undertakers storyline half-brother.
i donno
Kane is undertakers little brother in wwe but off-set they are not even related
I think it was Kane but i dont know?
no Kane killed her, well it was a fire, but Kane started iit.