"Sigwart Botho Philipp August zu Eulenburg, Count of Eulenburg (10 January 1884 in Munich – 2 June 1915 in Jasło) was the second son of Philip, ...
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Prince of Eulenburg (1847–1921) and his wife Augusta, born Countess of Sandels (1853–1941) and a German late romantic composer who fell in the First World War." - (en.wikipedia.org 29.01.2021)
