Who was Heston's Mother? How's He Related to the Hale clan?

I have another post up top and am not a troll, but one is a statement and this is a question: I didn't catch who his mom was to be able to be part of the rich family? How did the family work from the original. I know the original well. How are Heston's character and the Von Sydow's kids from the original related?

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