12th February 1847
17th September 1921
Königsberg, Province of Prussia, now Kaliningrad, Russian Federatio
Philip Frederick Alexander, Prince of Eulenburg and Hertefeld, Count of Sandels, in German: Philipp Friedrich Alexander Fürst zu Eulenburg und Hertefeld, Graf von Sandels was a politician and diplomat of imperial Germany in the late 19th century and early 20th century. He was also a composer and writer.
In January 1881 Eulenburg was appointed third Secretary at the German Embassy in Paris, serving under Bernhard von Bülow. After only six months he was transferred to the Prussian embassy in Munichwhere he served seven years. In November 1888 Eulenburg was appointed Prussian ambassador to the Grand Duchy of Oldenburg. In March 1890 he was sent to Stuttgart as Prussian ambassador to the Kingdom of Württemberg. In April 1891 he returned to Munich, this time as Prussian ambassador to the Kingdom of Bavaria. In 1893 Eulenburg was appointed Germany's ambassador to Austria-Hungary, a position he held until 1902.
In 1900, Eulenburg was created 1st Prince of Eulenburg and Hertefeld and Count of Sandels (Fürst zu Eulenburg und Hertefeld, Graf von Sandels). The second title was in honour of the family of his wife, whose father was the last Swedish Count of Sandels.