General der Infanterie Dietrich von Choltitz (left) surrender to Général de brigade Philippe Leclerc de Hauteclocque (Commander 2e Division Blindée), 25 August 1944. On 7 August previously he was appointed as Kommandierenden General und Wehrmachtbefehlshaber von Groß-Paris (Military Governor of Paris). At a meeting in Germany the following day, Hitler instructed him to be prepared to leave no Parisian religious building or historical monument standing. After Choltitz's arrival in Paris on 9 August, Hitler confirmed the order by cable: "The city must not fall into the enemy's hand except lying in complete rubble." A week later Hitler, in a rage, screamed, "Brennt Paris?" (Is Paris burning?). On 15 August 1944, the Paris police went on strike, followed on 19 August by a general insurrection led by the French Communist Party. The German garrison under Choltitz fought back but was far too small to quell the uprising. He brokered a ceasefire with the insurgents on 20 August, but many Resistance groups did not accept it, and a series of skirmishes continued on the next day. On 25 August, Choltitz surrendered the German garrison of 17,000 men to the Free French, leaving the city largely intact. Because Hitler's directive was not carried out, Choltitz has been described by some as the "Saviour of Paris". General von Choltitz later claimed in his memoir of 1951 that he defied Hitler's order to destroy Paris because he loved the city and had decided that Hitler was by then insane. It is known that the Swedish consul-general in Paris, Raoul Nordling, and the president of the municipal council, Pierre Taittinger, held several meetings with Choltitz, during which he negotiated the release of political prisoners. The all-night confrontation between Nordling and Choltitz on the eve of the surrender, as depicted in the 1965 book and 1966 film, Is Paris Burning?, and again in the 2014 film Diplomacy — in which Nordling persuades Choltitz to spare the city in return for a pledge to protect his family — was reported as factual in some newspaper stories, but lacks a definitive historical basis.

Source :
https://en.wikipedia.org/wiki/Dietrich_von_Choltitz
https://wtop.com/europe/2019/05/rare-color-footage-brings-d-day-memories-alive-75-years-on/