come into money
come into (some) money
To obtain money suddenly, often through inheritance. I heard that she came into some money when her grandfather died.
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.
come into (some) moneyand come into a (small) fortune
to get some money unexpectedly, usually by inheritance. She came into a lot of money when she turned twenty. I hope I can come into some money some day.
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs. © 2002 by The McGraw-Hill Companies, Inc.