Regnal numbers, I II, IV etc are only applied to the Monarch. If the Monarch's spouse is a female then she automatically becomes Queen Consort. Hence: Queen Elizabeth I, followed by Queen Elizabeth the Queen Consort and then Queen Elizabeth II.
When Queen Elizabeth II ascended to the throne Queen Elizabeth became Her Majesty Queen Elizabeth the Queen Mother a title afforded to her by Queen Elizabeth II
There is no difference. The Queen is Elizabeth ll.
H.M Queen Elizabeth The Queen Mother, (Elizabeth Bowes-Lyon) was the mother of H.M Queen Elizabeth II.
Elizabeth the Queen Mother.
Queen Elizabeth II's Mother was Her Majesty Queen Elizabeth Angela Marguerite Bowes-Lyon, The Queen Mother.
The Queen Mother was Queen Elizabeth II's mother.
Elizabeth Bowes Lyon
about four hundred years.
Queen Elizabeth II is not. Queen Elizabeth the Queen Mother was.
Queen Elizabeth II's Mother Her Majesty Queen Elizabeth, The Queen Mother died 30 March 2002 at the age of 101
There has not been a Queen (or King) of England for over 300 years. England is a part of, but not the same as, The United Kingdom of Great Britain and Northern Ireland. In 1978 the British monarch was Queen Elizabeth II who has reigned since 1952..
Their Majesties King George VI Queen Elizabeth, The Queen Mother
Queen Elizabeth I