Prince Harry won a legal dispute with Splash News, a photo agency which used a helicopter to take pictures inside his home.
This is an unexpected application of data law, which is more commonly thought of as governing large online databases and spammy mailing lists.
It opens a new avenue in the royal family's never-ending struggle to keep parts of their lives out of the public eye.
Prince Harry this week notched another victory in the royal family's long-running battle with paparazzi photographers, securing a "substantial payout" from an agency which used a helicopter to take pictures inside a house he was renting.
Potentially even more interesting than that is the way in which he won his battle — basing a legal case partly on a sweeping new European data law that is less than a year old.
According to a statement delivered to London's High Court on Thursday, in which the paparazzi agency Splash News apologized to Harry, also known as the Duke of Sussex (emphasis ours):