primary level, there are 100 or 42.4% who are female, 59 or 25.0% are not Swiss citizens and 63 or 26.7% do not speak German natively. At the secondary level, students are divided according to performance. The secondary level begins at about age 12 and usually lasts 3 years. There are 220 teenagers who are in the advanced school, of which 125 or 56.8% are female, 45 or 20.5% are not Swiss citizens and 41 or 18.6% do not speak German natively. There are 19 teenagers who are in the standard school, of which 8 or 42.1% are female, 5 or 26.3% are not Swiss citizens and 5 or 26.3% do not speak German natively. Finally, there are 16 teenagers who are in special or remedial classes, of which 6 or 37.5% are female, 8 or 50.0% are not Swiss citizens and 8 or 50.0% do not speak German natively. The average class size for all classes at the secondary level is 19.92 students. Notable people Gabriel Bucelin (1599 in Diessenhofen – 1681), a Benedictine polymath, humanist, historical writer and cartographer Johann Conrad Brunner (1653 in Diessenhofen – 1727), a Swiss anatomist, cited for his work on the pancreas and duodenum Johann Georg Rauch (1789 in Diessenhofen – 1851), a Swiss businessman and politician Georg Fein (1803 – 1869 in Diessenhofen), a German democratic journalist, an early German socialist and a liberal nationalist, lived in Diessenhofen from 1862 Conrad Brunner (1859 in Diessenhofen – 1927), a Swiss physician, surgeon and medical historian, particularly concerned with the disinfection of wounds and their healing Richard Dobson (1942 – 2017 in Diessenhofen), an American singer-songwriter and author, he moved to Switzerland in 1999 References External links Cities in Switzerland Municipalities of Thurgau Free imperial cities Cultural property of national significance in Thurgau