A follow-up investigation conducted by the Dutch secret service AIVD into the background of Prince Johan Friso's fiancée Mabel Wisse Smit has failed to uncover any further controversial details about the human rights worker, it was reported this week.
The Dutch prince effectively renounced his claim to the throne last month after a scandal erupted over his fiancée's reported links with a murdered mafia boss.
Ms Wisse Smit was alleged to have had a relationship with crime kingpin Klaas Bruinsma, who died in a gangland shooting in 1991. The 35-year-old denies she was intimately involved with the underworld boss, but admits to spending nights on his boat.
As a result of the controversy, the prince and his future wife decided against requesting parliamentary approval for their April 2004 wedding.
The investigation was originally undertaken after Prime Minister Jan Peter Balkenende said the couple gave him "incomplete and incorrect" information, and as a result, the AIVD should conduct further inquiries into the bride-to-be's past.