| Relationships | Role | Relationship Start | Relationship End |
| Bt Maulbronn Gmbh | Parent | 5/1/1999 | 1/31/2001 |
| Bt Mainau Gmbh & Co. Vermogensverwaltungsgeschaft Ohg | Subsidary | 5/1/1999 | 1/31/2001 |
| Relationships | Role | Relationship Start | Relationship End |
| Bt Maulbronn Gmbh | Parent | 5/1/1999 | 1/31/2001 |
| Bt Mainau Gmbh & Co. Vermogensverwaltungsgeschaft Ohg | Subsidary | 5/1/1999 | 1/31/2001 |