Prince Charles forced disgraced brother Andrew into a royal showdown where he “read him the riot act” over the Jeffrey Epstein sex-trafficking scandal, it was claimed Wednesday.

Charles, the 71-year-old heir to the throne, forced his humiliated younger brother to Sandringham, the Queen’s country retreat, for a so-called crunch summit before his accuser’s explosive BBC interview aired Monday night, according to the Sun.

Their father, 98-year-old Prince Philip, was also at the meeting, with sources previously saying the royals were demanding Andrew be “up front, open and honest” about other potential bombshells.

“It was all very civilized and calm, but Charles calmly read him the riot act and told him there was no way back for him in the near future,” a royal source told the UK paper of the prince dumped from royal duties.

“Andrew thought he was being treated harshly as nothing has yet been proved against him, but he accepted the decision. He really had little choice.”

The Prince of Wales is said to be deeply worried about the impact the escalating scandal is having on the ­monarchy — but is equally fearful about his brother talking to US authorities about his ties to Epstein.

“By doing that, Andrew would remove the mystery around the royal ­family,” the source told the Sun, calling it a “difficult predicament.”

“Philip regrets Andrew doesn’t know how to lead a simple life. He thinks he’s been too extravagant.”

Andrew, 59, left Sandringham before Monday’s “Panorama” aired accuser Virginia Roberts Giuffre’s allegations that she was trafficked by Epstein to have sex with the royal on three occasions. It followed his own disastrous BBC interview about the scandal that led to his downfall.

Buckingham Palace has “emphatically denied” that he had “any form of sexual contact or relationship” with her, stating, “Any claim to the contrary is false and without foundation.”