The relationship between Elizabeth I and Catherine de' Medici - the two most powerful Queens of their time - is one of the most intriguing and captivating stories of the 16th century. 

In this edition of our sibling podcast Not Just the Tudors, Professor Suzannah Lipscomb talks to Dr. Estelle Paranque about her new book Blood, Fire and Gold, which explores how these two formidable women wielded and negotiated power, and were united only in their dislike of Mary, Queen of Scots.