Question: How many air combat victories did Ferdinand von Richthofen's pilot nephew have?

Context paragraphs:
Tom Rees (Airman): Tom Rees (18 May 1895 – 17 September 1916) was a British Army officer who served in the Royal Flying Corps during the First World War.  Joining the military in early 1915, Rees was raised to the rank of lieutenant before his twenty-first birthday and eventually reached captain on the day of his death.  He was killed on 17 September 1916 while flying as an observer in an F.E.2b aircraft, which was shot down by Manfred von Richthofen, the German flying ace who was later known as the "Red Baron".  The aircraft was the first of Richthofen's 80 credited aerial combat victories.

Bolko von Richthofen: Bolko von Richthofen (September 13, 1899 – March 18, 1983) was a German archaeologist and a distant relative of the family of Manfred von Richthofen, the "Red Baron".  He is sometimes confused with his distant cousin and namesake, Karl Bolko von Richthofen (1903–1971) – the youngest brother of the fighter ace.

Mount Richthofen: Mount Richthofen is the highest summit of the Never Summer Mountains range of the Rocky Mountains of North America.  The prominent 12945 ft peak is located 9.0 km northwest by west (bearing 308°) of Milner Pass, Colorado, United States, on the Continental Divide separating the Rocky Mountain National Park Wilderness in Rocky Mountain National Park and Grand County from Routt National Forest and Jackson County.  The mountain was named in honor of pioneering German geologist Baron Ferdinand von Richthofen, apparently by Clarence King's 1870 survey team.

Ferdinand von Richthofen: Ferdinand Freiherr von Richthofen (5 May 18336 October 1905), better known in English as Baron von Richthofen, was a German traveller, geographer, and scientist.  He is noted for coining the terms "Seidenstraße" and "Seidenstraßen" = "Silk Road(s)" or "Silk Route(s)" in 1877.  He also standardized the practices of chorography and chorology.  He was an uncle of the World War I flying ace Manfred von Richthofen, best known as the "Red Baron".

Manfred von Richthofen: Manfred Albrecht Freiherr von Richthofen (2 May 1892 – 21 April 1918), also known as the "Red Baron", was a fighter pilot with the German Air Force during World War I.  He is considered the ace-of-aces of the war, being officially credited with 80 air combat victories.

The Red Fighter Pilot: The Red Fighter Pilot (German: "Der Rote Kampfflieger") is a book written by Manfred von Richthofen, a famous German fighter pilot who is considered the top scoring ace of the First World War, being officially credited with 80 air combat victories.  Richthofen's most common German nickname was "Der Rote Kampfflieger".

Manfred von Richthofen (sports official): Manfred von Richthofen (4 February 1934 – 1 May 2014) was a German hockey player and coach.  He was also an honorary President of German's national Olympic federation.  He was the nephew of World War I German pilot Manfred von Richthofen (the "Red Baron").  His career began during the 1950s.  He retired in 2006.  Richthofen was born in Berlin, Germany.

List of victories of Manfred von Richthofen: Manfred Albrecht "Freiherr" von Richthofen (2 May 1892 – 21 April 1918), widely known as the Red Baron, is considered the ace-of-aces of the First World War, being officially credited with 80 air combat victories, more than any other pilot of the war – before being killed in action near Amiens on 21 April 1918.

Richthofen Pass: Richthofen Pass ( ) is a pass, 1 nautical mile (1.9 km) wide, between Mount Fritsche and the rock wall north of McCarroll Peak, on the east coast of Graham Land.  Discovered and photographed in 1902 by the Swedish Antarctic Expedition under Nordenskjold, who named it Richthofen Valley for Baron Ferdinand von Richthofen, German geographer and geologist.  The feature was found to be a pass by the Falkland Islands Dependencies Survey (FIDS) in 1955.

Lothar von Richthofen: Lothar Freiherr von Richthofen (born Lothar Siegfried Freiherr von Richthofen; 27 September 1894 – 4 July 1922) was a German First World War fighter ace credited with 40 victories.  He was a younger brother of top-scoring ace Manfred von Richthofen (the "Red Baron") and a distant cousin of Luftwaffe Field Marshal Wolfram von Richthofen.

Supporting paragraphs: Ferdinand von Richthofen Manfred von Richthofen
Answer: 80