patriarch

noun

• 1the male head of a family or tribe.
• an older man who is powerful within an organization:Hollywood’s reigning patriarch rose to speak
• the male founder of something:he’s the patriarch of all spin doctors

• 2any of those biblical figures regarded as fathers of the human race, especially Abraham, Isaac, and Jacob, and their forefathers, or the sons of Jacob.

• 3a bishop of one of the most ancient Christian sees (Alexandria, Antioch, Constantinople, Jerusalem, and formerly Rome).
• the head of an autocephalous or independent Orthodox Church: Patriarch of Moscow and All Russia
• a Roman Catholic bishop ranking above primates and metropolitans and immediately below the Pope, often the head of a Uniate community: Patriarch of Venice