Royal. Cf. kingly, adj.

of royal birth; royal.

Of noble origin; born ‘in the purple’ (see purple, n. 1d). Obsolete. rare.

Instrumental and locative, as king-born, king-descended, king-favoured, etc.

born to (also in) (the) purple: born into an imperial or royal reigning family. Also in extended use.

Born into royalty; that is the child of a ruling monarch.

of royal birth.

of royal birth; also figurative (cf. purple, n. 1d).