Taj Mahal stands in the city of Agra, in the northern Indian state of Uttar Pradesh, on the banks of the Yamuna River. It was built in the memory of the beautiful Arjumand Bano Begum, who won the heart of a Mughal prince. She was married at 21 to Emperor Jahangir’s third son Prince Khurram and stayed loyally by his side through good times and bad: in the luxurious royal palaces of Agra as well as the transient tents of war camps.