On the south side of the White Tower is a modern gallery, 150 ft. long by 33 ft. wide, known as the Horse Armoury, containing a most interesting and complete collection of ancient arms and armour, arranged by the late Sir S. Meyrick, Mr. J. R. Planché, and Mr. Hewitt, including a series of equestrian figures in complete suits of armour, in chronological order, beginning with the second half of the thirteenth, and closing with the last years of the seventeenth century. Amongst them, those representing Henry VIII with a foot soldier beside him and Charles Brandon (1520) are especially remarkable.