In fact, wasn't that when Nicholas's brother Mikhail was offically appointed tsar in the event Nicholas died because Alexei was so young, or was it Alexandra who would be a regent until Alexei was old enough?
When George died in 1899, Michael became heir to the throne until a son was born to Nicholas. When Alexei was born in 1904, Michael was named Regent in the event of Nicholas dying before Alexei reached manhood.
Alexei could not reign in his own right until he was sixteen.
When Nicholas had fallen ill with typhoid in 1900, Allix expected their fourth child, this could be the long awaited son. If Nicholas died, Michael would be Tsar. Alix refused this because if the baby would be a boy, the child should be declared Tsar and in the meantime she would rule Rusia as Regent.
The prime minister Count Witte, opposed such idea and supported Michael.
At the end Nicholas recovered and their fourth child was a girl; Anastasia.
But what has this to do with Tatiana's illness?
Anna