Elizabeth Angela Marguerite Bowes Lyon, the youngest daughter of the Earl of Strathmore, was born on August 4, 1900. It might reasonably have been expected that she would lead a life of ease and privilege, but few could have imagined the profound effect she would have on Britain and its people. Her life spanned the whole of the 20th century, and this official biography tells not only her story but, through it, that of the country she loved so devotedly.