From typicallyspanish.com

Madrid
Prince Kardam of Bulgaria seriously injured in traffic accident
By h.b.
Aug 17, 2008 - 12:55 PM

Prince Kardam of Bulgaria, heir to throne in the country which does not recognise the monarchy, is in a serious condition after a traffic accident on the N-1 road in El Molar near Madrid. His wife, Miriam de UngrĂ­a, was in the car and was also injured.

Sources at the 12 de Octubre Hospital in the capital say his Jaguar car left the road and crashed into a tree, overturning and ending up just ten metres from a home. He has suffered serious head injuries. The condition of his wife, who is in the La Paz hospital has not yet been made public.