For ten points, identify this author of Tonio Kroger who wrote about Hans Castorp in The Magic Mountain and Gustav von Aschenbach in Death in Venice.
In one of this author's novels, the protagonist accidentally dances during the wrong part after being distracted by his love-interest Ingeborg Holm. This author also wrote a novel about a character who falls in love with Clavdia Chauchat and meets his tuberculosis-infected cousin, Joachim (*) Ziemssen, in the "flatlands." In another one of his works, the protagonist develops passionate feelings for the Polish boy Tadzio in a cholera-infected city. For ten points, identify this author of Tonio Kroger who wrote about Hans Castorp in The Magic Mountain and Gustav von Aschenbach in Death in Venice.
In one of this author's novels, the protagonist accidentally dances during the wrong part after being distracted by his love-interest Ingeborg Holm.
Paul Thomas Mann