During the 17th century, there was regular contact and exchange of theological views between Eastern Orthodoxy and the various Protestant churches (cf. Patriarch Cyril of Constantinople), with some aiming for a union against their common dogmatic enemy, the Roman Catholic Church.
Cyril Lucaris (Patriarch Cyril I Lucaris), patriarch for six terms between 1612 and 1638
Constantinople | Patriarch | Cyril of Alexandria | Photios I of Constantinople | Latin Patriarch of Jerusalem | patriarch | Fall of Constantinople | Cyril Wecht | Cyril Ramaphosa | Saints Cyril and Methodius | Greek Orthodox Patriarch of Jerusalem | Ecumenical Patriarch of Constantinople | Cyril Clarke | Cyril | Third Council of Constantinople | Patriarch of Alexandria | Patriarch Nikon | Cyril Scott | Cyril Newall, 1st Baron Newall | Cyril Connolly | Cyril Bibby | Patriarch Germanus I of Constantinople | Patriarch Filaret | Fourth Council of Constantinople | Cyril Ritchard | Cyril Davies | Patriarch Polyeuctus of Constantinople | Patriarch Evtimiy Square | Mese (Constantinople) | John Cyril Porte |