It makes The Crown look like Sesame Street. The bitter regal rivalries that led to war.

Stream Royal Cousins at War on BBC Select

Families are always complex. There are plots, scandals and betrayals. But when the family concerned rule the most powerful nations on the planet, these petty squabbles can lead to political turmoil, economic upheaval and even war.

Watch Royal Cousins at War and more acclaimed documentaries on BBC Select today. Restrictions apply*.

Royal Cousins at War on BBC Select

At the start of the 20th century, three cousins ruled Britain, Russia and Germany. Their relationship and rivalries had a devastating impact on Europe then and now.

Start your free trial now

BBC Select is available on Amazon Prime Video Channels, the Apple TV app and the Roku Channel for only $4.99 a month. Start your free 7-day trial today to stream documentaries on Smart TVs, laptops, tablets and mobile devices. Restrictions apply*.

Get it on Apple TV
Prime Video - Channels
The Roku Channel