| Oberliga Süd (1945-63) 1956/1957 - Appearances as Referee |  |
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| 30/09/1956 | FSV Frankfurt | - | Frankfurter SG Eintracht | 1:3 | - | - | - |
| 18/11/1956 | SSV Jahn Regensburg | - | FSV Frankfurt | 2:1 | - | - | - |
| Oberliga Süd (1945-63) 1956/1957 - Appearances as Referee | |
|
|
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| 30/09/1956 | FSV Frankfurt | - | Frankfurter SG Eintracht | 1:3 | - | - | - |
| 18/11/1956 | SSV Jahn Regensburg | - | FSV Frankfurt | 2:1 | - | - | - |
| Complete name: | Leonhardt |
| Born: | |
| Place of birth: |
Germany |
| Residence: | Stuttgart |
| Nationality: |
Germany |