Prince Constantin, the youngest son of the reigning Prince of Liechtenstein Hans-Adam II, died suddenly this week, the Princely House said in a statement Wednesday. He was 51. "The Princely House ...

Prince Constantin of Liechtenstein, a prince from one of Europe’s oldest royal families, died suddenly on Tuesday at the age of 51. The father of three was seventh in line to the throne and the third ...

The Princely House of Liechtenstein is mourning the sudden death of Prince Constantin at age 51. The royal house announced the news in a statement on Wednesday and did not disclose a cause of death.

The son of reigning Prince Hans-Adam and dad of three was seventh in the line of succession Janine Henni is a Royals Staff Writer for PEOPLE Digital, covering modern monarchies and the world's most ...

Prince Constantin of Liechtenstein has died at age 51 on Tuesday, the royal household has announced. The father of three, who was the seventh in line to the throne, was the third son of the reigning ...