With the exception of princely families, this is the only case in which father and son received the highest Prussian valor award.

From October 1, 1888, to September 30, 1891, Wenninger studied at the War Academy, which qualified him for the higher adjutantage and, secondarily, for the general staff.

This was followed by a year-long assignment to the staff of the I Royal Bavarian Corps before he returned to line duty as a company commander in the 5th Chevaulegers Regiment.

On April 19, 1906, he became a member of the study commission of the War Academy and was entrusted with the leadership of the 1st Bavarian Heavy Cavalry Regiment.

When World War I broke out, he initially remained the Bavarian military representative as part of the Great Headquarters.

In recognition of his services, Wenninger was awarded the Knight's Cross of the Order of Merit of the Bavarian Crown on September 27, 1914.

In September and October, the division was able to prevent multiple breakthrough attempts during the battles taking place near La Bassée and Arras.

For this achievement, King Ludwig III rewarded Wenninger with the knighthood of the Military Order of Max Joseph on April 23, 1917.