| Verfasser | Häufigkeit |
| Ferreira de Castro, José Maria 1898-1974 |
67 |
| Ferreira de Castro, José María |
9 |
| Díaz de Castro, Francisco J. |
8 |
| García de Castro, Francisco Javier |
8 |
| Fernández de Castro, Javier 1942-2020 |
7 |
| Castro Fernández, José Javier de |
6 |
| Castro, Francisco José de 1670-1738 |
4 |
| Castro, Juan F. de |
4 |
| Fernández de Castro, Rafael |
3 |
| Barer, Ariela 1998- |
2 |
| Bedard, Irene 1967- |
2 |
| Berger, Timo 1974- |
2 |
| Castro, Javier Mateo de |
2 |
| Castro, Jean de 1540-1600 |
2 |
| Cobos Guerra, Fernando 1965- |
2 |
| De Castro, Tehillah |
2 |
| Domínguez, Jorge I. 1945- |
2 |
| Fernandez de Castro, José Antonio |
2 |
| Froseth, Christine 1995- |
2 |
| Gage, Lucas 1995- |
2 |