Hmmm. You're right. I had the date 1134 stuck in my head, but in fact it has nothing to do with crowning for either Matilda of Boulogne or Matilda of England.
I meant to refer only to Empress Matilda, the cousin to Stephen of Blois. She had legitimate claim to the throne of England, being (as she saw it) the true succesor to William Adelin who perished during the tragic White Ship disaster.
When Henry died Matilda should have become Queen of England by right
- and during the interegnum of 1135 she theoretically had every reason to proclaim herself Queen of England (and indeed she did so whilst in Anjou). Stephen of Blois had the advantage however at the time, in that he was actually in
the country when Henry died.
The date I meant
to point out was that of 1141, when in April, Maud defeated Stephen and usurped him. He was no longer King, and Maud became Queen in all but name - she became 'Lady of the English.'
The when Stephen gains the advantage once more we get all the exciting goings-on, like Matilda fleeing in a snow-white cape across the icy fields, or pretending to be a corpse so she could escape from Devizes.