Other ISBN ranges for Royal Books: Royal Books (978-2-9507974-...) ยท Royal Books (978-3-7463-...) - German
| year of publication | ISBN | author(s) | title |
|---|---|---|---|
| 1989 | 978-1-870417-02-0 | Katerina Von Burg | Ludwig II of Bavaria: The Man and the Mystery |
| 1994 | 978-1-870417-09-9 | B. Scharf | Maskenbusch |