| DUKEOFCORNWALL | Title traditionally held by the eldest son of the reigning British monarch |
| HOLYROOD | Area in Edinburgh at the foot of the Royal Mile, site of the official Scottish residence of the reigning British monarch (8) |
| CLARENCE | English ducal title, last borne by the eldest son of Edward VII (8) |
| REDCARD | Key to open Ferrari traditionally held by referee (3,4) |
| DUKEOFYORK | Noble title traditionally granted to the monarch's second son (4,2,4) |
| DAUPHIN | The title of the eldest son of the king of France from 1349 to 1830 (7) |
| GEORGE | Name of the eldest son of the Duke and Duchess of Cambridge (6) |
| ISMAILI | A Shiah sect whose adherents believe that the eldest son of the sixth imam was the rightful seventh imam |
| PRINCEOFWALES | Title of the eldest son of a British monarch (6,2,5) |
| EDDY | - the Fair; modernisation of the name of the eldest son of Edmund I who was approximately 15 years o |
| EDWARDIAN | Characteristic of the reign of the eldest son of Queen Victoria (9) |
| INFANTA | Formerly in Spain and Portugal, a daughter of the reigning monarch (7) |
| ELIAB | The eldest son of Jesse, and thus the older brother of King David, in the Old Testament |
| EDWARD | Name of the eldest son of George V and Queen Mary (Mary of Teck) (6) |
| HEROD | The reigning king at the time of Jesus' birth who ordered the killing of the innocents |
| NORWAY | Home country of the reigning world chess champion |
| ROYAL | Contributing to Fauntleroy alerting a member of the reigning family (5) |
| ANDREW | Which current royal was the first child born to a reigning British monarch for over a century? (6,6) |
| PRINCE | Which current royal was the first child born to a reigning British monarch for over a century? (6,6) |
| CUSH | In Genesis 10:6-9, the eldest son of Ham and father of the great hunter Nimrod (4) |
