Ulvaeus is best known as one-fourth of the Swedish pop group ABBA, which celebrated the 50th anniversary of its Eurovision Song Contest victory this year with their song Waterloo.
The group consisted of two couples: Ulvaeus and Agnetha Faltskog and Benny Andersson and Anni-Frid Lyngstad.
The Swedish musician married his ABBA bandmate Feldskogg in 1971. The couple had two children, Linda (age 49) and Peter (age 44), before divorcing in 1980.
Anderson and Lindstad also divorced in 1981, a year before the band broke up.
Eurovision 2024 will be held in Malmö, Sweden, but the quartet did not reunite to perform there.
Ulvaeus was married to Lena Kallersjo from 1981 to 2022.
