| Verfasser | Häufigkeit |
| Köppen, Fedor von 1830-1904 |
76 |
| Köppen, Wladimir Peter 1846-1940 |
66 |
| Köppen, Friedrich 1775-1858 |
43 |
| Köppen, Manuel 1952- |
41 |
| Koppen, Luise 1855-1922 |
37 |
| Köppen, Thomas |
37 |
| Köppen, Edlef 1893-1939 |
22 |
| Koppen, Erwin 1929-1990 |
19 |
| Köppen, Friedrich Theodor 1833-1907 |
18 |
| Köppen, Ulrich |
17 |
| Köppen, Peter |
16 |
| Koppen, Georg-Friedrich |
13 |
| Köppen, Daniel Joachim 1736-1807 |
12 |
| Köppen, Heinrich |
12 |
| Köppen, Johann von |
12 |
| Köppen, Ralph 1967- |
12 |
| Köppen, Ernst |
11 |
| Köppen, Johann von 1531-1611 |
11 |
| Köppen, Mario 1964- |
10 |
| Wegener, Alfred 1880-1930 |
10 |