Towards the end of November, when the Riyadh heat had finally become bearable, the prince disappeared from captivity. For three years, Prince Salman bin Abdulaziz bin Salman al-Saud — a quadrilingual fencing expert with a degree from the Sorbonne —had been held captive alongside his father after falling foul of Crown Prince Mohammed bin Salman.
They were held in a two-storey house in Riyadh, said a person close to the family, guarded by about a dozen Saudi policemen or members of the security services. Living conditions, they claimed, were reasonable: the princes were allowed free rein over the house. They could sit on the front step — behind the compound walls — and drink tea in the shade. Visits by family members were permitted
Source : The Times