winter semester of 1950–51. He was granted emeritus status and then taught regularly from 1951 until 1958, and by invitation until 1967. Death Heidegger died on 26 May 1976 in Meßkirch and was buried in the Meßkirch cemetery. Personal life Heidegger married Elfride Petri on 21 March 1917, in a Catholic ceremony officiated by his friend , and a week later in a Protestant ceremony in the presence of her parents. Their first son, Jörg, was born in 1919. Elfride then gave birth to in August 1920. Heidegger knew that he was not Hermann's biological father but raised him as his son. Hermann's biological father, who became godfather to his son, was family friend and doctor Friedel Caesar. Hermann was told of this at the age of 14; Hermann became a historian and would later serve as the executor of Heidegger's will. Hermann Heidegger died on 13 January 2020. Heidegger spent much time at his vacation home at Todtnauberg, on the edge of the Black Forest. He considered the seclusion provided by the forest to be the best environment in which to engage in philosophical thought. A few months before his death, he met with Bernhard Welte, a Catholic priest, Freiburg University professor and earlier correspondent. The exact nature of their conversation is not known, but what is known is that it included talk of Heidegger's relationship to the Catholic Church and subsequent Christian burial at which the priest officiated. Affairs Heidegger had a four-year affair with Hannah Arendt and a decades-long affair with Elisabeth Blochmann; both women were his students. Arendt was Jewish, and Blochmann had one Jewish parent, making them subject to severe persecution by the Nazi authorities. The 35-year-old Heidegger, who was married with two young sons, began a long romantic relationship with 17-year-old Arendt who later faced criticism for this because of Heidegger's support for the Nazi Party after his election as rector at the University of Freiburg in 1933. They agreed to keep the details of the relationship a secret, preserving their letters but keeping them unavailable. The relationship was not known until Elisabeth Young-Bruehl's biography of Arendt appeared in 1982. At the time of publishing, Arendt and Heidegger were deceased and Heidegger's wife, Elfride (1893–1992), was still alive. The affair was not widely known until 1995, when Elzbieta Ettinger gained access to the sealed correspondence. It is probably fair to say that, following his