The Bernadotte af Wisborg reference article from the English Wikipedia on 24-Jul-2004
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Bernadotte af Wisborg

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Four persons have been created Counts Bernadotte af Wisborg in the Luxembourgish nobility, all of which were members of the Swedish Royal House of Bernadotte, to which the Grand Duke of Luxembourg is closely related. The princes in question had all lost their royal titles due to marriages untolerated by the Swedish King.

The first such person was Prince Oscar Bernadotte (1859-1953), formerly Duke of Gotlandia. He was created Count Bernadotte af Wisborg by Grand Duke Adolf on February 2, 1892, and a possible explanation for the name is that the fortification Visborg (then spelled Wisborg) lies in his former dukedom.

During the 20th century, marriages of this kind grew more frequent. On July 2, 1951, no less than three deposed princes were created Counts Bernadotte af Wisborg:

The agnatic descendants of these four persons are entitled to the title Count Bernadotte af Wisborg. The most well-known of them is Count Folke Bernadotte af Wisborg, a son of Oscar Bernadotte af Wisborg.