| TRITON | Son of the sea god Poseidon (6) |
| TRIDENT | Depicted on the national flag of Barbados, a type of three-pronged spear as wielded by the sea god Poseidon (Neptune) or Britannia (7) |
| SEASON | A son of the sea or salt, perhaps (6) |
| NEREID | One of the daughters of the sea-god Nereus (6) |
| IRIS | Greek goddess of the rainbow, daughter of the sea god Thaumas and the Oceanid Electra (4) |
| NEPTUNE | Planet of the sea god (7) |
| DOSAGE | As prescribed to the sea-god (6) |
| EDWARD | First name of the third son of the Queen and Prince Philip, husband of Sophie, Countess of Wessex (6) |
| ROBERT | First name of the son of the 'Father of Railways' (6) |
| GEORGE | Name of the eldest son of the Duke and Duchess of Cambridge (6) |
| TRITONIS | Of Neptune's son, the sea-god; also fem adj form for Pallas |
| RUBBLE | Bamm-Bamm, adopted son of the neighbours of the Flintstones in Bedrock (6) |
| WIGGUM | Ralph, oddball son of the police chief in The Simpsons (6) |
| ICARUS | In Greek mythology, the son of the inventor Daedalus (6) |
| EDMUND | Illegitimate son of the Earl of Gloucester in King Lear (6) |
| ARCHIE | Son of the Duke and Duchess of Sussex (6) |
| BALDER | Son of the chief god Odin and his wife Frigg in Norse mythology (6) |
| JOSEPH | Eleventh son of the Old Testament patriarch Jacob, the first by his second wife Rachel (Genesis 30:22-24) (6) |
| STOCKS | Son of the Dales' Charity, who met his mother for the first time in 2018 (4,6) |
| DAMIEN | Son of the Devil, in "The Omen" |
