Mariah Carey Confirms Her Mom Patricia
and Sister Alison Both Died on Same Day. Her mother Patricia was a Juilliard-trained opera
singer and vocal coach. Despite their ups and downs, Mariah maintained a relationship
with her mother. Mariah's relationship with Alison was also quite complex. The
star wrote in the memoir that it was, at least at the time, "emotionally and
physically safer for me not to have any contact" with her or is brother Morgan.
Cuase of death is still not disclosed.