ABBA singer Anni-Frid Lyngstad with her late husband Heinrich Ruzzo Prinz Reuss von Plauen.

Anni-Frid "Frida" Lyngstad was married to Heinrich Ruzzo Reuss from 1992 to his death in 1999.

Ruzzo was the son of Heinrich Enzio Prinz Reuss, Count of Plauen, of the formerly sovereign House of Reuss (which is now a part of present day Thuringia, Germany). His mother was the Swedish painter Louise Peyron, daughter of Baron Gustaf Peyron.

Frida and Ruzzo were known as part of the inner circle Swedish King Carl Gustaf and his wife Queen Silvia.