After more than 20 years backing Rupert Murdoch’s control of his media empire, arrested Saudi Prince Alwaleed bin Talal has dumped his entire $US1 billion-plus voting stake in 21st Century Fox, raising further questions about family control of the company.

The share sale only became public at lunch time today after 21st Century Fox contacted the ABC seeking to correct comments I’d made in this story which was broadcast on The World Today yesterday.