| Verfasser | Häufigkeit |
| Ferreira de Castro, José Maria 1898-1974 |
67 |
| Castro Varela, María do Mar 1964- |
51 |
| Castro y Calvo, José María 1903-1987 |
14 |
| Dhawan, Nikita 1972- |
9 |
| Ferreira de Castro, José María |
9 |
| Castro, Maria Silvia Portella de |
7 |
| Granja Castro, Dulce María 1953- |
7 |
| Gómez de Avellaneda y Arteaga, Gertrudis 1814-1873 |
6 |
| Díaz, Nicomedes-Pastor 1811-1863 |
5 |
| Gomes, Ângela Maria de Castro 1948- |
5 |
| Luque de Castro, Maria Dolores |
5 |
| Appenroth, Max Nicolai 1986- |
4 |
| Castro, Hebe Maria Mattos de |
4 |
| Kant, Immanuel 1724-1804 |
4 |
| Valcárcel, Miguel |
4 |
| Díaz Castro, José María 1914-1990 |
3 |
| Lautmann, Rüdiger 1935- |
3 |
| Lottmann, Ralf 1971- |
3 |
| Mecheril, Paul 1962- |
3 |
| Osswald, Maria de Castro Henriques |
3 |