Tsar Nicholas II of Russia and King George V of Britain were cousins.
Their mothers were sisters.
During the Bolshevik "red terror", British King George's Russian cousin Tsar Nicholas was killed in July 1918 along with his wife and children in a cellar of Ipatiev House in Ekaterinburg.
What is called the Bolshevik 'Red Terror 'was a campaign of mass killings, torture, and systematic oppression conducted by the Bolsheviks after they seized power in Petrograd and Moscow in 1917.
The term is also frequently applied to political repression during the whole period of the Russian Civil War of 1918–1922. During that time the Cheka (the Bolshevik secret police), conducted the mass repressions.
Estimates for the total number of people killed in the Red Terror range from 50,000 to two million.
The details of the Russian royal family, when they were held captive by Red Bolshevik soldiers at Ipatiev House in Ekaterinburg was kept from the British press by King George when the details became known. And a White Russian monarchist has added to the myth with false atrocity propaganda. Colonel Pavel Rodzianko claimed the royal women were sexually abused by their guards: "I saw in the room in which the murder took place obscene drawings with inscriptions, partly obliterated since, but clear enough to read. There were horrible pictures of Rasputin and the Empress and inscriptions boasting of outrage, and the shrieks that were heard at night tend to confirm this. Anything more horrible than the last week of the family cannot be imagined." But no other such claims exist, and this surely false.
Other sources claim it wasn't parliament but the King himself who was against providing them with a safe place of exile in the UK:"Tsar Nicholas fully expected to able to leave Russia and seek sanctuary in England with their cousin and ally King George V, but tragically, this was not to be. If the Imperial Family had left immediately they may have survived, but the children came down with smallpox and by the time of their recovery sentiments had changed around the world. In France and England, crowds were cheering the fall of the Romanov Empire and the United States congress joined in the congratulations with the idea of 'making the world safe for democracy'.
The British Prime Minister was instructing the King not to allow the Tsar and his family to seek asylum in England for fear of the consequences by their people and with that, the offer of sanctuary was withdrawn. The royal houses throughout Europe were shocked at this decision. Even Kaiser Wilhelm II had offer safe passage through German waters for any British warship that would rescue his cousins from captivity, but the invitation was not to come. They were abandoned by all and tragically the Romanov's were left to their fate."
The threat of revolution and/or dissolution of the monarchy with the spread of communist sympathy was taken so seriously that either parliament and/or the King refused to get involved and save the King's cousin.George V came under severe criticism for his role in the events.
Asylum in the UK was offered to the Tsar and his family following the 1917 revolution, but later withdrawn after the King raised concerns about how it would impact on the reputation of the House of Windsor.
Helen Rappaport, : "King George became increasingly conscience-stricken. He had a consultation with the British Secret Service in which he said 'If you can get them out, get them out.'
As the Russian royal family was related to many of Europe's dynasties, the fear of the spread of Bolshevism caused considerable alarm among the aristocracy and royalty of the rest of Europe. The Bolshevik regicide of the Tsar and his family not only alarmed the British royal family but it confirmed their worst fears of the brutal nature of the Bolsheviks and their plans to export their ideology throughout Europe.