5. Britain's Duchess of York Sarah Ferguson
The Duchess of York was shown in British tabloids with her lover sucking on her toes during a vacation, days before she was divorced from Prince Andrew.
She was also caught on tape in May 2010 accepting a bribe from an undercover reporter for giving his access to Prince Andrew.
Sarah Ferguson has been constantly in an out of troubles.
6. Spain's Duke of Palma Inaki Urdangarin
He is the husband of Spain's Princess Cristina and has been accused of misusing public funds allocated for sports and tourism events, while as chairman of a non-profit foundation.
He is the son-in-law of King Juan Carlos of Spain. He was removed from all official functions relating to the Spanish royal family since December 2011.
7. King Albert II of Belgium
A biography of Belgian Queen Paola in 1999 revealed that King Albert II had a 31-year-old illegitimate daughter.
This was described as "malevolent gossip" by the palance, but the Belgian media was focussed more on the intrusion into the royal family's privacy rather than on the King's alleged infidelity.
