Sister of Saudi crown prince on trial over alleged beating The sister of the crown prince of Saudi Arabia goes on trial Tuesday in a French court over the alleged beating of a workman who was refurbishing her luxury Paris apartment. Hassa bint Salman, sister of powerful Mohammed bin Salman who is known by his initial "MBS", stands accused of ordering her bodyguard to beat up the workman after he was seen taking a photo inside her home in September 2016. IMAGES AND SOUNDBITES