Read the following passage carefully and answer the questions that follow:
Florence Nightingale was born on the `15^(th)` May, 1820 at Florence in Italy and her parents called her after the name of the city where she was born. Her main ambition was to be a nurse and so she gave up all thoughts of marriage and personal happiness. She spent years visiting hospital after hospital. Day and night she visited every bed in the hospital to see that no patient was neglected and that all were as comfortable as possible. However hard she might have worked all day, every night she would take her lamp and move from bed to bed. 'The Lady with the Lamp' the soldiers called her and that is the name by which the world has remembered her ever since.
Why her parents named her Florence Nightingale ?