A century ago, the Royal Family welcomed a baby who would change everything. No one knew on the day she was born that the whole future of the Monarchy would not only rest on her shoulders but be steered by her to a place of safety it had perhaps never known before. The arrival of Elizabeth Alexandra Mary, on April 21 1926, was a family celebration that hid a turning point in royal history. Through the year, I'll be looking back at the Royal Family in 1926 as it lived a year that would alter its very existence even though it didn't know it at the time.