Norway’s crown princess has become embroiled in another scandal after newly unsealed files appeared to show her years of extensive contact with the late child sex offender Jeffrey Epstein.

The latest tranche of Epstein files, released on Friday by the US justice department, appear to include nearly 1,000 mentions of the crown princess, Mette-Marit.

The files include scores of emails traded between the two, suggesting they were in contact from 2011 to 2014, the Norwegian daily VG reported. Mette-Marit married the future king of Norway in 2001.

The revelations come at a sensitive time for the royal family. The trial of Mette-Marit’s son, Marius Borg Høiby for rape is due to begin on Tuesday. He was born from a relationship before she married Crown Prince Haakon

Høiby is facing 38 charges, including the alleged rape of four women as well as alleged assault and drug offences. If convicted he could face up to 16 years in prison. Høiby has denied the most serious charges, including those of sexual abuse.