After the death of his father, in 1706, he inherited the duchy of Saxe-Meiningen together with his full-brother Frederick Wilhelm and his half-brother Anton Ulrich, because his father in his will had specified the indivisibility of the duchy and the joint government of his sons.
The oldest brother, Ernst Ludwig strove for autocracy for himself and his descendants. Immediately after the death of the father, Ernst Ludwig signed a contract between himself and his brothers; for this, they had to leave the full government of the duchy in his hands. The introduction of the Primogenitur failed, however; thanks to that, his brothers could governed again after Ernst Ludwig's death as the guardians for his sons. He died in Meiningen.