New Delhi, July 1 -- Prince Harald of Hohenzollern, from Germany, has passed away at 63, only days before welcoming his first child. Harald's wife, Princess Josefa von Hohenzollern, 51, announced the news on social media.

In a post on the social media platform Instagram, she wrote in German, "Dear fellow citizens of Leonberg, today I am writing with a heavy heart. My beloved husband, Harald v. Hohenzollern, died completely unexpectedly of a sudden cardiac death. This loss hits me very deep," while sharing several photos of them.

Prince Harald died of a heart attack in Namibia, where he was engaged in the diamond industry. Meanwhile, Princess Josefa is campaigning for re-election as mayor of Leonberg in Baden-Wurttemberg, Germany, accord...