Ferdinand Ludwig von Oeynhausen-Schulenburg [1] (1699–1754) was an Imperial General-Feldzeugmeister, a diplomat and founder of the “Schulenburg-Oeynhausen” line.
There he stood out for his bravery and, through the mediation of Prince Eugene, was appointed as an officer in the Austrian Infantry Regiment (Count Traun).
Field Marshal Traun was also impressed by the young man and he rose quickly through the ranks, becoming Colonel in the regiment by 1733.
In the Austro-Turkish War (1737–1739), he commanded a brigade, distinguished himself in the Battle of Grocka and was promoted to Lieutenant-Field Marshal on 18 August 1739.
He had been commissioned by Empress Maria Theresa to win King Charles Emmanuel of Sardinia as an ally.
On 19 November, the crossing was successful at Teltschitz (Telčice), which the Prussian Lieutenant Colonel Wedel had been able to prevent for a long time with only 400 men.
The help of the Austrians came too late, so Schulenburg was ordered back to Vienna and replaced by Joseph Wenzel I, Prince of Liechtenstein.
In 1753 he converted to Catholicism and died on 16 February 1754 in Vienna from the after-effects of a fall from his horse on the march to Genoa.