Prosecutors in the trial of Marius Borg Høiby, son of Norwegian Crown Princess Mette-Marit, have requested a jail term of seven years and seven months, arguing he should be found guilty of 39 of the 40 charges he is accused of.

The 29-year-old denies the most serious charges, which include four counts of rape as well as serious assault.

The trial, which began in early February, is due to come to an end this week and the three judges will then retire to consider their verdicts.

Hoiby was in court on Wednesday as the prosecution wrapped up its case. He was born before his mother married Norway's crown prince in 2001, and grew up within the royal family without being a member of it.

He maintains that he had consensual sex with all four women before the alleged rapes took place. His defence lawyers were due to begin summing up their case later.