Victoria (1819-1901) was from 20 June 1837 the Queen of the United Kingdom of Great Britain and Ireland and from 1 May 1876 the first Empress of India of the British Raj until her death. Her reign as the Queen lasted 63 years and seven months, longer than that of any other British monarch before or since. She was of almost entirely German descent, the daughter of Prince Edward Augustus Duke of Kent and Princess Victoria of Saxe-Coburg-Saalfeld, and granddaughter of George III and the niece of her predecessor William IV. She arranged marriages for her nine children and forty-two grandchildren across the continent, tying Europe together and earning her the nickname "the grandmother of Europe." The Victorian era represented the height of the Industrial Revolution, a period of significant social, economic, and technological progress in the United Kingdom. Victoria's reign was marked by a great expansion of the British Empire; during this period it reached its zenith, becoming the foremost global power of the time.