William III of Mâcon died in 1157.
William III of Sicily died in 1198.
William III of Provence died in 1037.
William Culbertson III died in 1971.
William III of Baux died in 1257.
William Rathbone III died in 1789.
William Trench III died in 1896.
William III of England died on 1702-03-08.
William Wrigley III died on 1999-03-08.
William Franklin Lee III died in 2011.
William Byrd III died on 1777-01-02.
William Bee Ravenel III died in 1968.
William States Lee III died in 1996.