She was the first female ruler of the Kingdom of England. However, her failure to secure that rule meant that her undisputed period of reign in 1141 was extremely brief. Consequently she is often excluded from lists of English monarchs. | She was the first female ruler of the Kingdom of England. However, her failure to secure that rule meant that her undisputed period of reign in 1141 was extremely brief. Consequently she is often excluded from lists of English monarchs. |