From Monarchists.Wiki

Euodia (Greek: Εὐοδία), along with Syntyche, Clement, and others, was a woman who "shared [Paul's] struggle in the [cause of the] gospel". In his letter to the Christians of Philippi, Paul asked Euodia and Syntyche to agree and work together, and he urged the Philippians to help them work together.

I urge Euodia and I urge Syntyche to agree and to work in harmony in the Lord. Indeed, I ask you too, my true companion, to help these women [to keep on cooperating], for they have shared my struggle in the [cause of the] gospel, together with Clement and the rest of my fellow workers, whose names are in the Book of Life.

— Philippians 4:2–4:3 (AMP)