In Thailand, the last two constitutions allow the succession of a female monarch.
From the en.wikipedia.org
An empress regnant is a female monarch who reigns in her own right over an empire.
From the en.wikipedia.org
In theory, wouldn't a female monarch be Duchess of Normandy rather than Duke of Normandy?
From the en.wikipedia.org
At that point she will become Britain's longest reigning royal and history's longest reigning female monarch.
From the guardian.co.uk
What Henry really wanted was a son, since he had historical reasons to believe that England would not accept a female monarch.
From the en.wikipedia.org
At 63 years and 7 months, her reign lasted longer than that of any other British monarch, and is the longest of any female monarch in history.
From the en.wikipedia.org
Her reign of 63 years and 7 months, which is longer than that of any other British monarch and the longest of any female monarch in history, is known as the Victorian era.
From the en.wikipedia.org
In Brazil, Spain and Portugal, however, the husband of a female monarch was accorded the masculine equivalent of her title-at least after she bore him a child.
From the en.wikipedia.org
The first child born to a reigning Swedish king and queen in 178 years, Victoria can inherit the crown only if Sweden's constitution is revised to allow a female to become monarch.