Constantine VI (23 August 1610 – 18 May 1647) was a monarch of the House of Komnenos-Palaiologos who ruled as Emperor of Diadochia from 1624 to 1647. Constantine succeeded his father Constantine V as Emperor of Diadochia a few months before his fourteenth birthday. His grandmother, the Empress Dowager Sophia Eleonora acted as regent during Constantine's minority.