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.

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 ...

Liechtenstein is mourning a member of its royal family. He is also survived by his brothers Prince Alois, 55, heir to the throne, and Prince Maximilian, 54. The royal house did not disclose Constantin ...

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 ...