Madrid ( CNN ) -- An unprecedented court hearing for Spain 's Princess Cristina in a financial corruption scandal , scheduled for April 27 , was postponed Friday after a prosecutor filed an appeal , judicial officials said . No new date for the hearing was immediately set , because a three-judge panel must first resolve the conflict between the view of the judge who issued the subpoena that there is sufficient evidence to cite the princess as a suspect , and the prosecutor 's view that there is not , the officials said . Princess Cristina is King Juan Carlos ' youngest daughter . This is the first time since democracy was restored in Spain in 1975 that a member of King Juan Carlos ' immediate family has faced preliminary charges of any kind , in any case , a spokesman for the Royal Household said . On Wednesday , the investigating magistrate , Judge Jose Castro , issued the 18-page order that brought preliminary charges against Princess Cristina in a fraud case centered on her husband , Inaki Urdangarin , the king 's son-in-law . Urdangarin has faced preliminary charges for more than a year . He is accused of diverting , for private use , public funds earmarked for his non-profit foundation . He denies any wrongdoing . The scandal already had created unprecedented problems for the popular royal family due to Urdangarin 's alleged involvement , but after the princess was also named as a suspect , it became top news at home and abroad . On Friday , prosecutor Pedro Horrach filed his appeal to Castro 's local court in Palma de Mallorca , in Spain 's Balearic Islands . A higher provincial court in Palma must decide if the princess will remain a suspect in the case . If she does , the princess has chosen two top lawyers , the Royal Household announced on Friday . One is Miquel Roca , a Barcelona-based former politician who helped write Spain 's Constitution of 1978 . The other is well-known criminal lawyer Jesus Maria Silva . The Royal Household initially said on Wednesday it would n't comment on judicial matters , but later in the day announced that it was surprised that the judge -- who last year said in an order that there was insufficient evidence to name the princess as a suspect -- had changed his mind . In his order , the judge said that further investigation since last year had led to the decision to bring preliminary charges against the princess . Castro 's order said Princess Cristina should be questioned regarding `` the handling and destination of funds obtained '' through her husband 's foundation and a separate company . The Royal Household also said on Wednesday that it was in `` absolute conformity '' with the prosecutor 's announcement that he would appeal . The main opposition Socialist Party has called on the Royal Household to remain neutral in the legal battle between the judge and prosecutor over the evidence regarding the princess . On Thursday , Spanish Foreign Minister Jose Manuel Garcia-Margallo told reporters that the case is hurting the image of Spain . On Friday , the Royal Household made public for the first time that it had quietly asked the government , two months ago , to include the monarchy in a new law on transparency -- regarding financing and other activities -- that is currently being debated and pending approval , a Royal Household senior spokesman said . Urdangarin was given the title of Duke of Palma when he married Princess Cristina in 1997 . An adviser to the Royal Household also has been implicated in the scandal . Earlier this year , a judge ordered Urdangarin and a former business associate , Diego Torrres , to deposit a joint bond of â‚¬8 million ( about $ 10.8 million ) for potential civil damages . If not , the judge would move to embargo the assets of the two men , a court spokeswoman said . No trial has been set in the case . The preliminary charges that have been announced could eventually be dropped , but a filing of indictments would set a trial in motion .
Princess Cristina had been subpoenaed to appear in court April 27 . A prosecutor filed an appeal , saying there is insufficient evidence to cite her . Princess Cristina is King Juan Carlos ' youngest daughter . The fraud case centers on her husband , Inaki Urdangarin .