| title | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) |
|---|---|---|---|
| Telynorion Llannerch-y-medd/ The Harpers of Llannerch-y-head: Teulu'r Britannia Az Erall/The Britannia Family and Others | 978-1-9O2565-O2-6 (1-9O2565-O2-9) | 2000 | Llio Rhydderch |
H. Robert · H. Roberts · H. Rübartsch · He Robert · Ho Robert