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Frederick William IV

noun
  1. 1795–1861, king of Prussia 1840–61 (brother of William I of Prussia).
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Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

British Dictionary definitions for frederick william iv

Frederick William IV

noun
  1. 1795–1861, king of Prussia (1840–61). He submitted to the 1848 Revolution but refused the imperial crown offered by the Frankfurt Parliament (1849). In 1857 he became insane and his brother, William I, became regent (1858–61)
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Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012