Editing Werner Heisenberg (section)

===Personal life===
Heisenberg enjoyed [[classical music]] and was an accomplished pianist, and playing for others was a large part of his social life.<ref name=Biography/> During the early 1930s he would often play music and dance at the Berlin home of his aristocratic student [[Carl Friedrich von Weizsäcker]], during which time he carried on a courtship with Carl's high-school-age sister Adelheid, which scandalized her parents and led to him being unwelcome at their home for a time.<ref>{{cite book |last1=Rechenberg |first1=Helmut |title=Werner Heisenberg – Die Sprache der Atome. Leben und Wirken |date=2010 |publisher=Springer |isbn=978-3-540-69221-8 |pages=915-918 and 943-944}}</ref>
Years later his interest in music also led to meeting his future wife. In January 1937, Heisenberg met Elisabeth Schumacher (1914–1998) at a private music recital. Elisabeth was the daughter of a well-known Berlin economics professor, and her brother was the economist [[E. F. Schumacher]], author of ''[[Small Is Beautiful]]''. Heisenberg married her on 29 April. Fraternal twins Maria and Wolfgang were born in January 1938, whereupon [[Wolfgang Pauli]] congratulated Heisenberg on his "pair creation"{{mdash}}a wordplay on a process from elementary particle physics, [[pair production]]. They had five more children over the next 12 years: Barbara, Christine, [[Jochen Heisenberg|Jochen]], [[Martin Heisenberg|Martin]] and Verena.<ref>{{harvnb|Cassidy|2009|p=372 and Appendix A}}</ref><ref>David Cassidy and the American Institute of Physics, ''[http://www.aip.org/history/heisenberg/p10.htm The Difficult Years] {{Webarchive|url=https://web.archive.org/web/20080915073146/http://www.aip.org/history/heisenberg/p10.htm |date=15 September 2008 }}''</ref> In 1939 he bought a summer home for his family in [[Urfeld am Walchensee]], in southern Germany.

One of Heisenberg's sons, [[Martin Heisenberg]], became a [[neurobiologist]] at the [[University of Würzburg]], while another son, [[Jochen Heisenberg]], became a physics professor at the [[University of New Hampshire]].<ref>{{harvnb|Cassidy|2009|p=372}}</ref>