A boorish Jude Law was the stumbling block to Sienna Miller’s domestic bliss. Now comes news that a boorish cult leader ruined the marriage of Miller’s father, the American investment banker-turned-art dealer Ed Miller. In an interview in the British magazine Tatler, Ed’s ex-wife, the well-known decorator Kelly Hoppen, says Sienna’s dad got so caught up with a group that dressed in “sheets and beads” that Hoppen tried to save their marriage by joining. During an initiation rite, however, the cult’s leader “hit me first with a peacock feather, then with his hand,” Hoppen told Tatler. “The blow was so strong that I fell backwards and hit my head on a bannister.”

Sienna’s dad is now planning to marry a woman he met in the cult, according to Hoppen.