Genealogy
mv to here ...

He's also the likely ancestor of Gerda von Siemens, married to Joachim von Oertzen, the parents of: 
 Kristin von Oertzen (born November 6 1944, Liessow), married on July 1 1969 in Munich (civ) and on July 2 1969 in Munich (rel) to Michael Karl August Wilhelm Prinz Biron von Kurland (born January 20 1944, Gross Wartenberg, presumptive heir to the title of Fürst Biron von Kurland, the parents of: 
 Veronika Prinzessin Biron von Kurland (born January 23 1970, Munich)
 Alexander Prinz Biron von Kurland (born September 18 1972, Munich), presumingly the last male heir of his line, married on August 16 2003 in Bernried (civ) and October 4 2003 in Bernried (rel) to Michaela Gräfin Strachwitz von Gross-Zauche und Camminetz (born March 19 1979, Starnberg)
 Stephanie Prinzessin Biron von Kurland (born September 24 1975, Munich)
 Michaela von Oertzen (born July 11 1948, Hamburg), married on June 8 1974, in Munich, to Eugen Wunibald Hubert Augustinus Lukas Maria Prinz von Waldburg zu Wolfegg und Waldsee (born October 18 1943, Krzemusch bei Dux, Bohemia), the parents of: 
 Sophie Margarete Walburga Prinzessin von Waldburg zu Wolfegg und Waldsee (born December 10 1975, Wangen, Allgäu), married on February 10 2007 in Kisslegg to Giovanni Barone Malfatti di Montetretto
 Isabelle Katharina Walburga Prinzessin von Waldburg zu Wolfegg und Waldsee (born January 31 1978, Wangen, Allgäu), married on June 17 2006 in Kisslegg (civ) and on July 22 2006 in Kisslegg (rel) to Georg Freiherr von Massenbach (born February 6 1975, Lübeck)
 Ferdinand Georg Wunibald Prinz von Waldburg zu Wolfegg und Waldsee (born July 30 1981, Tettnang)

Werner von Siemens was the great great grandfather of Henrik von Siemens and the great great great grandfather of Sophia von Siemens (born August 5, 1995) and her sister Philippa (born July 5,1999).