| Europa League 1965/1966 - Appearances as Referee |  |
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| 03/11/1965 | Dunfermline Athletic | - | B 1903 København | 5:0 | - | - | - |
| 02/02/1966 | Leeds United | - | Valencia CF | 1:1 | - | - | 3 |
| Europa League 1965/1966 - Appearances as Referee | |
|
|
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| 03/11/1965 | Dunfermline Athletic | - | B 1903 København | 5:0 | - | - | - |
| 02/02/1966 | Leeds United | - | Valencia CF | 1:1 | - | - | 3 |
| Complete name: | Leopold Sailvin Horn |
| Born: | 29/08/1916 † 16/09/1995 |
| Place of birth: |
Sittard, 
Netherlands |
| Nationality: |
Netherlands |