Richard III: More or Less examines how many descendents he could have

Fifteen distant relatives of Richard III have successfully petitioned the High Court for a judicial review about where the king should be buried.

The Plantagenet Alliance want him buried in York and claim that as descendants they should be allowed a say in his final resting place.

Mathematician Rob Eastaway figures out how many other distant relatives of Richard III might actually be out there with More or Less presenter Tim Harford.