Question: The Vengeance of Rome (2006) is a novel by Michael Moorcock, in this novel, Colonel Pyat, an incarnation of the Eternal Champion, goes to Italy and Germany, where he becomes involved in Fascism and Naziism, including sexual encounters with which German military officer and an early member of the Nazi Party?

full_context: Document 1: Ernst Röhm: Ernst Julius Günther Röhm (] ; 28 November 1887 – 1 July 1934) was a German military officer and an early member of the Nazi Party. As one of the members of its predecessor, the German Workers' Party, he was a close friend and early ally of Adolf Hitler and a co-founder of the "Sturmabteilung " (SA, "Storm Battalion"), the Nazi Party's militia, and later was its commander. By 1934, the German Army feared the SA's influence and Hitler had come to see Röhm as a potential rival, so he was executed during the Night of the Long Knives.
Document 2: Sturmabteilung: The Sturmabteilung (SA; ] ), literally Storm Detachment, functioned as the original paramilitary wing of the Nazi Party (NSDAP).
Document 3: The Iron Dream: The Iron Dream is a metafictional 1972 alternate history novel by American author Norman Spinrad. The book has a nested narrative that tells a story within a story. On the surface, the novel presents an unexceptional pulp, post-apocalypse science fiction action tale entitled "Lord of the Swastika". However, this is a pro-fascism narrative written by an alternate-history Adolf Hitler, who in this timeline emigrated from Germany to the United States in 1919 after the Great War, and used his modest artistic skills to become first a pulp–science fiction illustrator and later a successful science fiction writer, telling lurid, purple-prosed adventure stories under a thin science fiction-veneer.
Document 4: Gruppenführer: Gruppenführer (] , "group leader") was an early paramilitary rank of the Nazi Party (NSDAP), first created in 1925 as a senior rank of the SA. The term "Gruppenführer" is also used for leaders of groups/teams of the police, fire departments, and several other organizations.
Document 5: Pyat Quartet: Pyat Quartet is a tetralogy of novels (1981–2006) by Michael Moorcock comprising "Byzantium Endures", "The Laughter of Carthage", "Jerusalem Commands" and "The Vengeance of Rome".
Document 6: The Godfather's Revenge: The Godfather's Revenge, a 2006 novel written by author Mark Winegardner, is the sequel to "The Godfather", "The Sicilian", and "The Godfather Returns". The story takes place from 1963–1964, and picks up the story from where "The Godfather Returns" left off. The novel deals with Michael Corleone's guilt over the events of "The Godfather Part II", particularly his ordering the death of his brother, Fredo. Subplots include Nick Geraci's plans for revenge against the Corleones, Tom Hagen's being implicated in a murder, and organized crime's battle with a presidential family (the Sheas, who are analogous to the Kennedy family).
Document 7: The Beast Reawakens: The Beast Reawakens (later prints carried the subtitle Fascism's Resurgence from Hitler's Spymasters to Today's Neo-Nazi Groups and Right-Wing Extremists) is a 1997 book by investigative journalist Martin A. Lee, in which he tells the story of old-guard fascists' strategy for survival and the revival of fascism since 1944. Special attention is given to ODESSA actions during the Cold War, international fascist networks, and political inroads to the right-wing mainstream. The book opens with a quotation from T. E. Lawrence's "Seven Pillars of Wisdom" (1922), a favorite of Hitler's favorite commando, SS-Standartenführer Otto Skorzeny.
Document 8: Schutzstaffel: The Schutzstaffel (SS; also stylized as with Armanen runes; ] ; literally "Protection Squadron") was a major paramilitary organization under Adolf Hitler and the Nazi Party (NSDAP) in Nazi Germany, and later throughout German-occupied Europe during World War II. It began with a small guard unit known as the "Saal-Schutz" (Hall-Protection) made up of NSDAP volunteers to provide security for party meetings in Munich. In 1925, Heinrich Himmler joined the unit, which had by then been reformed and given its final name. Under his direction (1929–45), it grew from a small paramilitary formation to one of the most powerful organizations in Nazi Germany. From 1929 until the regime's collapse in 1945, the SS was the foremost agency of security, surveillance, and terror within Germany and German-occupied Europe.
Document 9: Night of the Long Knives: The Night of the Long Knives (German:    ), also called Operation Hummingbird (German: "Unternehmen Kolibri") or, in Germany, the Röhm Putsch (German spelling: "Röhm-Putsch" ), was a purge that took place in Nazi Germany from June 30 to July 2, 1934, when the Nazi regime carried out a series of political extrajudicial executions intended to consolidate Hitler's absolute hold on power in Germany. Many of those killed were leaders of the "Sturmabteilung" (SA), the Nazis' own paramilitary organization, colloquially known as the "Brownshirts" due to the color of their uniforms. The best-known victim of the purge was Ernst Röhm, the SA's leader and one of Hitler's longtime supporters and allies. Leading members of the left-wing Strasserist faction of the Nazi Party (NSDAP), along with its figurehead, Gregor Strasser, were also killed, as were establishment conservatives and anti-Nazis, such as former Chancellor Kurt von Schleicher and Bavarian politician Gustav Ritter von Kahr, who had suppressed Adolf Hitler's Munich Beer Hall Putsch in 1923. The murders of SA leaders were also intended to improve the image of the Hitler government with a German public that was increasingly critical of thuggish Brownshirt tactics.
Document 10: Rottenführer: Rottenführer (] , "section leader") was a Nazi Party paramilitary rank that was first created in the year 1932. The rank of "Rottenführer" was used by several Nazi paramilitary groups, among them the "Sturmabteilung" (SA), the "Schutzstaffel" (SS) and was senior to the paramilitary rank of "Sturmmann".
Document 11: Jerusalem Commands: Jerusalem Commands is a novel by Michael Moorcock. It is the third in the Pyat Quartet tetralogy. This novel takes place between World War One and World War Two, and in it, Colonel Pyat travels from Hollywood to Casablanca, to Alexandria and travels across the Sahara.
Document 12: The Vengeance of Rome: The Vengeance of Rome (2006) is a novel by Michael Moorcock. It is the fourth in the Pyat Quartet tetralogy. In this novel, Colonel Pyat, an incarnation of the Eternal Champion, goes to Italy and Germany, where he becomes involved in Fascism and Naziism, including sexual encounters with Ernst Röhm and Adolf Hitler and a sojourn in Dachau. Mrs Cornelius, the mother of Jerry Cornelius, is another major character. The end of the novel sees Pyat confronted with his ambiguous heritage and his own unreliability as a narrator.
Document 13: Hermann Göring: Hermann Wilhelm Göring (or Goering; ] ; 12 January 1893 – 15 October 1946) was a German political and military leader as well as one of the most powerful figures in the Nazi Party (NSDAP) that ruled Germany from 1933 to 1945. A veteran World War I fighter pilot ace, he was a recipient of the "Pour le Mérite". He was the last commander of "Jagdgeschwader" 1, the fighter wing once led by Manfred von Richthofen.
Document 14: Sturmmann: Sturmmann (] , "storm man") was a Nazi Party paramilitary rank that was first created in the year 1921. The rank of "Sturmmann" was used by the "Sturmabteilung" (SA) and the "Schutzstaffel" (SS).
Document 15: Mein Kampf: Mein Kampf (] , "My Struggle") is a 1925 autobiographical book by Nazi Party leader Adolf Hitler. The work describes the process by which Hitler became antisemitic and outlines his political ideology and future plans for Germany. Volume 1 of "Mein Kampf" was published in 1925 and Volume 2 in 1926. The book was edited by Hitler's deputy Rudolf Hess.
ground_truth: Ernst Julius Günther Röhm