probably go down in history as; "her mother died of a broken heart".
as coincidences will happen:
I am reading a biography of Teddy Roosevelt. & Had an eerie sense of dejavu, as I just read:
"on Feb. 14th 1884 both his wife (age 22) & his mother (age 50) died of different ailments in the Roosevelt mansion in NYC."
parallels in grief if nothing else.