The Duke and Duchess of Cambridge praise the "inspirational and unfalteringly brave" mother-of-two.
A man has appeared in court charged with the murder, attempted rape and robbery of Zara Aleena.
The High Court had ruled Archie Battersbee was dead and doctors could end life support treatment.
"That was then, this is now," says royal source, after claims the prince's charity accepted millions in cash.
Sanctions against Anna Tsivileva will help weaken the Russian war machine, the UK's foreign office says.