St Basil the Great, a prominent Christian priest.
Since 390 he was the иishop of Cappodicia Caesarea.
He sought to consolidate the Christianity, propagating asceticism, standing up for the church independent of official state power.
He is the author of a liturgy, the main divine service of the Christian church.
St Basil the Great was especially venerated by representatives of the Grand-Ducal and Royal House of Rurikovich, he was the heavenly patron of Grand Duke Vassily III, the father of Tsar Ivan IV the Terrible.