apt preposition

English as a Second Language English Vocabulary, Grammar and Idioms
1
  1. I have some expectation of receiving a large fortune in my uncle’s will.
  2. I have some expectation of receiving a large fortune through my uncle’s will.
    Could any body say both are correct?
    Which preposition is really apt here?
2

I expect to receive a large fortune from my uncle when his will is read.
I expect to inherit a fortune from my uncle.