child, Gudrun, who was born on 8 August 1929; they were also foster parents to Gerhard von Ahe, the son of an SS officer who had died before the war. Margarete sold her share of the clinic and used the proceeds to buy a plot of land in Waldtrudering, near Munich, where they put up a prefabricated house. Himmler was constantly away on party business, so his wife took charge of their efforts—mostly unsuccessful—to raise livestock for sale. After the Nazis seized power in January 1933, the family moved first to Möhlstrasse in Munich, and in 1934 to Gmund am Tegernsee, where they bought a house. Himmler later gained a large house in the Berlin suburb of Dahlem free of charge as an official residence. The couple now saw each other rarely as Himmler became totally absorbed by work. Gebhard, Heinrich Himmler's older brother, characterized Margarete as a "cool, hard woman with extremely delicate nerves who radiated no warmth at all and spent too much time moaning" who had in spite of these characteristics, been an "exemplary housewife", one who devotedly loved Heinrich and remained true to her husband. Margarete Himmler joined the Nazi Party as early as 1928 (member number 97,252). Due to Himmler's enormous responsibilities, the relationship with Marga was strained. The couple did unite for social functions; they were frequent guests at the home of Reinhard Heydrich. Margarete saw it as her duty to invite the wives of the senior SS leaders over for coffee and tea on Wednesday afternoons. Despite her best efforts and the fact that Margarete was married to the Reichsführer-SS, she remained unpopular in SS circles. Former Hitler Youth leader Baldur von Schirach wrote in his memoirs that Heinrich Himmler was constantly "henpecked", essentially had zero influence at home, and had to yield to Margarete’s will. During the Nuremberg Rally in 1938, Himmler had conflicts with most of the wives of the highest-ranking SS leaders, who as a group refused to take any directions from her. According to Heydrich's biographers and historian Robert Gerwarth, Lina Heydrich harbored a "violent dislike" of Margarete Himmler, which was probably reciprocated. After the war, Lina Heydrich made disparaging comments to a reporter from Der Spiegel. Margarete was described as a "narrow-minded, humorless, blonde-haired woman" who suffered from agoraphobia. Hedwig Potthast, Himmler's young secretary starting in 1936, became his mistress by 1938. She left her job in 1941.