"Prince Paul of Württemberg (Paul Heinrich Karl Friedrich August; 19 January 1785 – 16 April 1852) was the fourth child and second son of King Frederick I and his wife, Duchess Augusta of Brunswick-Wolfenbüttel. Through an illegitimate daughter, Paul is the great-great-great-great-grandfather of British Prime Minister Boris Johnson." - (en.wikipedia.org 30.01.2020)
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