IAU: Corona Borealis

Farnese Globe

Kugel Globe

Mainz Globe

Aratus

[71] Here too that Crown [Corona], which glorious Dionysus set to be memorial of the dead Ariadne, wheels beneath the back of the toil-spent Phantom. [74] To the Phantom’s back the Crown is near, but by his head mark near at hand the head of Ophiuchus [88] Toward the Crown leans the Serpent’s jaw, [570?] The Corwn sets and the Southern Fish as far as its back. Half the setting Crown is visible in the sky but half already sinks beneath the verge. [620?] Half the Crown and the tip of the Centaur’s tail are upraised with the rising Claws [660?] but other signs in the East the vault of heaven brings from below, the remaining half of the Crown and the tail of the Hydra,

Reference:
English translation by Douglas Kidd (1997).
Aratus: Phaenomena, Cambridge Classical Texts and Commentaries, Series Number 34

Online available: translation by Mair (1921) 

Pseudo-Eratosthenes

it’s Ariadne’s bridal wreath. From Crete: it was made by Hephaistos from fire red gold and jewels from India which made it so bright that Theseus was guided by its shine.

References:
French translation by:
Jordi Pàmias i Massana and Arnaud Zucker (2013). Ératosthènes de Cyrène – Catastérismes, Les Belles Lettres, Paris

English version in:
Robin Hard (2015): Eratosthenes and Hyginus Constellation Myths with Aratus’s Phaenomena, Oxford World’s Classics

For modern versions of ancient lore:
Ian Ridpath’s page on this constellation

Commentary