Short answers, pulled from the story.
Johann Ludwig Graf Schwerin von Krosigk entered the world on the 22nd of August 1887 in Rathmannsdorf, a small village within the Duchy of Anhalt. His father Erich Adolf Wilhelm belonged to an old noble family without titles while his mother Luise Rosalie came from the Schwerin countess line.
His acceptance of the Golden Party Badge on the 30th of January 1937 automatically made him a member of the Nazi Party with membership number 3,805,231. He also joined the Academy for German Law later that year while never opposing the dictator publicly despite family members participating in assassination attempts against Hitler.
Hitler selected Krosigk to continue as finance minister after his death in his final testament and Joseph Goebbels was supposed to lead a government with Krosigk serving as Chancellor following Hitler's suicide. Reichspräsident Karl Dönitz then asked Schwerin von Krosigk to succeed him as Chancellor but he declined and accepted the position of Leading Minister instead.
The Ministries Trial concluded in 1949 with findings against him regarding financial crimes because he was found guilty of laundering property stolen from Nazi victims and financing concentration camps. A ten-year prison sentence followed these convictions before amnesty procedures led to his release in 1951 after serving part of his term.
He died on the 4th of March 1977 in Essen, West Germany at age 89. He wrote several books including Es geschah in Deutschland published in 1951 and Staatsbankrott which provided a study covering German financial policy from 1920 until 1945.