Who is the richest family that owns banks?

Apple Creek Banking Company 19 COMENITY CAP Bank 18 Credit First, National Association 14 CREDIT ONE Bank National Association 14 Dickinson County Bank 11 Farmers & Merchants State Bank 3 FIRST DAKOTA National Association National Bank 5 GREENE CTY CMRL Bank 1 Kansas State Bank 11 MERCHANTS National Association National Bank 6 Mid-America Bank 4 NEWTEK Bank National Association 13 Peoples Savings & Loan Company 10 Pineland Bank 18 Quoin Financial Bank 5 River City Bank 4 Security State Bank of Warroad 3 Templeton Savings Bank 6 UNB Bank 13 WAUKESHA State Bank 10