| Author | Titles | 1.
| Royal Scottish Academy ( (Edimburgo, Escócia) | 1 | 2.
| Royal Scottish Museum (Edimburgo, Grã-Bretanha) | 1 | 3.
| The Royal Society of Arts | 2 | 4.
| Royal Street Gallery (Paris, França) | 1 | 5.
| Royalton-Kisch, Martin | 5 | 6.
| Roy-Bois, Samuel, 1973- | 1 | 7.
| Royer, Alain | 1 | 8.
| Royer, Clemence-Auguste | 1 | 9.
| Royer, Dominique | 9 | 10.
| Royer, Henri | 1 |
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