| Relationships | Role | Relationship Start | Relationship End |
| Pyramid Holdings B.V. | Parent | 6/1/1990 | 6/30/2004 |
| Potter & Moore Group Limited | Subsidary | 5/1/1994 | 8/31/2001 |
| Principal Hotels (Europe) Limited | Subsidary | 3/1/1994 | 3/30/1998 |
| Erne Holdings Limited | Subsidary | 10/1/1992 | 5/30/1994 |
| Potter & Moore Group Limited | Subsidary | 8/1/1991 | 4/30/1994 |