Max Muller Falls He was Bavaria's highest-scoring ace of the Great War. By October 1917 Max Muller was second only to Manfred von Richthofen as the 'highest scoring ace still at the front'. He inherited leadership of
Jasta Boelcke after Walter von Bülow-Bothkamp was killed on 6 January 1918. Müller's tenure lasted three days. Here's an account of his final flight (c/o rogersstudy.co.uk.com):
"
On January 9th 1918 Max Muller left the aerodrome at Marke in Albatros D Va 5405/17 leading six other Albatros Scouts and headed for the lines, an RE 8 from 21 Squadron was engaged on a photographic reconnaissance in the Paschendaele area. Muller soon saw this machine and led his unit on to it in a formation attack. The pilot of the RE 8, Captain G Zimmer, saw the seven Albatros Scouts approaching and manoeuvred his machine to allow his observer, Second Lieutenant H Sommerville, to get a good burst into the leading Albatros at very close range. The Albatros, after firing at the RE 8, veered off and began to glide away; then suddenly it burst into flames and fell out of control. The pilots of Jasta Boelcke saw their leader's aircraft fall in flames and as they watched they saw Muller detach himself from the burning machine to fall to his death near the ruins of Moorsledge at 12.50hr. "
Wikipedia notes has that Müller’s body was found hit by a single bullet 'between the first and second button of his tunic'. In early 1919, he was posthumously approved for the Knight's Cross of the Military Order of Max Joseph, backdated to 11 November 1917. Thus in death, he became a non-hereditary knight, Max Ritter von Müller.
Interesting that this article, which originated in German papers, says Müller died due to a defective engine... rather than return fire from a lowly R.E.8.
(from the Youngstown Vindicator, 15 January 1918):

Check out forum member rcboaterbill's recent post featuring a 1/72 albatross flown by Müller :
https://forum.ww1aircraftmodels.com/index.php?topic=13547.msg250915#msg250915