“On behalf of our sister, Virginia Roberts Giuffre, we extend our gratitude to the UK’s Thames Valley Police for their investigation, and the arrest of Andrew Mountbatten-Windsor.
“He was never a prince. For survivors everywhere, Virginia did this for you.”
Virginia became one of the most prominent accusers in the Jeffrey Epstein scandal after claiming she was trafficked to have sex with Windsor three times – the first when she was just 17 years old.
She took her life aged 41 last year following the publication of her memoir.
Meanwhile, King Charles, 77, has declared the “law must take its course” following Windsor’s arrest.
He issued a statement after his brother was arrested at his Sandringham home.
In a statement released from Buckingham Palace, the King said: “I have learned with the deepest concern the news about Andrew Mountbatten-Windsor and suspicion of misconduct in public office.
“What now follows is the full, fair and proper process by which this issue is investigated in the appropriate manner and by the appropriate authorities. In this, as I have said before, they have our full and wholehearted support and co-operation.
“Let me state clearly: the law must take its course.
“As this process continues, it would not be right for me to comment further on this matter. Meanwhile, my family and I will continue in our duty and service to you all.”
Andrew was arrested by Thames Valley Police on his 66th birthday – with unmarked cars pictured outside his home of Wood Farm on the Sandringham estate – where he has lived since his eviction from Royal Lodge in Windsor earlier this year.