How long did the dynasty that Gustav Adolf von Wulffen was born in last?
Gustav Adolf von Wulffen: Gustav Adolf von Wulffen (born 18 April 1878 in Gotha, Saxe-Coburg and Gotha – died 4 May 1945) was a German general and Nazi. Saxe-Coburg and Gotha: Saxe-Coburg and Gotha (German: "Sachsen-Coburg und Gotha" ), or Saxe-Coburg-Gotha, was an Ernestine duchy ruled by a branch of the House of Wettin, consisting of territories in the present-day states of Bavaria and Thuringia in Germany. Saxe-Coburg and Gotha:  It lasted from 1826 to 1918.
from 1826 to 1918