Profile of the Day: Frederick IX of Denmark

Posted March 11, 2026 by Amanda | No Comment

Image: Frederick IX of Denmark / Wikimedia Commons

On March 11, 1899, Frederick IX of Denmark was born. A highly popular monarch, Frederick IX reigned as the King of Denmark from 1947 until his death in 1972.

Frederick IX and his wife Ingrid had three daughters and no sons. In 1953, the Act of Succession was passed, which allowed a female to inherit the throne if there were no male heirs. Upon his death, Frederick was succeeded by his eldest daughter Margrethe II.

Explore Frederick IX of Denmark’s family tree on Geni and share how you’re related to Danish royalty.

View Frederick IX of Denmark’s Geni Profile

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Amanda is the Marketing Communications Manager at Geni. If you need any assistance, she will be happy to help!

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