I've searched online dictionaries but I couldn't find the meaning of
be from money.
The example is:
To anyone who doesn’t know who Matthew is, they just come across as a
well-heeled, successful couple. But Matthew is from money, and lots of
it.
The full text is here:
She gets dressed quickly in a simple but elegantly cut dress.
Everything she wears flatters her. Genetics has been kind to her, and
she now has the money to make the most of what she’s been given.
Matthew is a warm, generous man, and she’s very much in love with him.
Of course, the money doesn’t hurt. She thinks often of how lucky she
is, of how awful it must be for most women—to marry and have children
on a budget. She’s well aware that she and Matthew have a charmed
life. She’s not going to apologize for it. But she’s certainly not
going to rub anyone’s nose in it either. She knows what it’s like to
want—to want desperately—things that you can’t have. To anyone who
doesn’t know who Matthew is, they just come across as a well-heeled,
successful couple. But Matthew is from money, and lots of it.
Also, does the word "but" in "But Matthew is from money…" suggest that maybe he is personally not rich?
Best Answer
To me, it sounds like a variation of to come from money (M-W):
The writer is saying that Matthew's family is very rich. It does not refer to Matthew and his wife (the couple). It refers to his parents and his lineage.
To answer your other question (in the edit): no, it's contrasting people's perception of Matthew with his actual history. The author says that they come across as (= appear to be) a "well-heeled, successful couple". This suggests that they became wealthy on their own, without help. But, the truth is that Matthew's family was rich. The author is suggesting that Matthew did not become wealthy on his own.