| Relationships | Role | Relationship Start | Relationship End |
| International Bancshares Corporation | Parent | 1/1/2002 | 12/31/2009 |
| Nbt Of Delaware, Inc. | Parent | 9/30/1996 | 12/31/2001 |
| National Bancshares Corporation Of Texas | Parent | 5/16/1990 | 9/29/1996 |
| Bellarmino, Ltd. | Subsidary | 5/29/1990 | 8/1/1996 |