The Duke of Palma, Inaki Urdangarin
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Spanish royal Inaki Urdangarin to appear before judge

24 February 2012 Last updated at 05:49 GMT

The Duke of Palma, Inaki Urdangarin, the husband of Spain's Princess Cristina and son-in-law of King Juan Carlos, will testify in court on Saturday over allegations that he misused millions of euros of public money.

He has not been formally charged, but the case has serious implications for the future of Spain's royal family.

Tom Burridge reports.