Joseph Napoleon Mertens – Kölner Adress-Buch 1844
| Given name | Joseph Napoleon |
|---|---|
| Family name | Mertens |
| Occupation | Restaurateur |
| Address | Löwengasse 6 |
| Place | Köln |
| GOV identifier | KOLOLNJO30LW |
| Book | Kölner Adress-Buch 1844 |
| page | 217 |
| Year | 1844 |
| Given name | Joseph Napoleon |
|---|---|
| Family name | Mertens |
| Occupation | Restaurateur |
| Address | Löwengasse 6 |
| Place | Köln |
| GOV identifier | KOLOLNJO30LW |
| Book | Kölner Adress-Buch 1844 |
| page | 217 |
| Year | 1844 |