Helen Castor is a historian, writer and broadcaster.

Her latest book, She-Wolves: The Women Who Ruled England Before Elizabeth, is published in the UK by Faber & Faber, and in the US by HarperCollins.

In 2012, BBC Four and BBC Two broadcast three documentaries based on She-Wolves and presented by Helen - now available on DVD and iTunes.

Helen is one of the presenters of Radio 4's Making History.

'Helen Castor has an exhilarating narrative gift ... I think readers will love this book.'
Hilary Mantel