| Name | Role | Place | Source | |
|---|---|---|---|---|
| Alexandre Decastiau | Witness | 1859 | Brussel | Civil registration marriages |
| Alexandre Decastiau | Witness | 1861 | Brussel | Civil registration marriages |
| Alexandre Decastiau | Witness | 1893 | Schaarbeek | Civil registration marriages |
| Constant Alexandre Romain Decastiau | Father of groom | 1888 | Brussel | Civil registration marriages |
| Constant Alexandre Romain Decastiau | Groom | 1852 | Brussel | Civil registration marriages |
| Constant Alexandre Romain Decastiau | Groom | 1856 | Brussel | Civil registration marriages |
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