Professor Robert Bartlett tells the extraordinary story of England's most dysfunctional, yet longest ruling, royal dynasty. These clips are taken from the original BBC Two programme, The Plantagenets.

Professor Robert Bartlett: Henry III was nine years old when he became the fourth Plantagenet king of England. The French dynasty had ruled England and much of France for 50 years. But Henry's ...

Captain Bob Bartlett, shipmate and comrade of both Robert E. Peary and Donald B. MacMillan, was a steadfast and reliable member of the Arctic expeditions for which he captained the Roosevelt under the ...