Ghost character that when Shakespeare dramatised the poem and expanded Mercutio's role, he introduced a brother for him in order to suggest a more fraternal character. Shakespeare appears to be the first dramatist to have used the name Valentine prior to "Romeo and Juliet", but he himself had actually used the name previously. In "Two Gentlemen of Verona", a play about two brothers and also set in Verona, Valentine is a true and constant lover and Proteus is a fickle one. While not primarily based on it, "Two Gentlemen of Verona" adapts several incidents from Brooke's poem, and in all these instances
Proteus a backstory that makes the father of his character Theoclymenus, Proteus, a king in Egypt who had been wed to a Nereid Psamathe. In keeping with one of his themes in "Helen", Euripides mentions in passing "Eido" ("image"), a daughter of the king and therefore sister of Theoclymenus who underwent a name-change after her adolescence and became "Theonoë," "god-minded," since she was as it turned out capable of foreseeing the future--as such, she is a prophet who appears as a crucial character in the play. The play's king Proteus is already dead at the start of the action, and his