"Pretty Countess Anna de Coligny (1624-80) married a younger son in a minor branch of the House of Württemberg. After giving birth to numerous children, Anna ...
gradually became mad. Sadly, four of her daughters, Heinrika, Anna, Elisabeth and Hedwig, became mentally incapacitated, too. Her only surviving son, Leopold Eberhard, although certainly not mad, was to flaunt all conventions by marrying his illegitimate children to each other." - http://madmonarchs.guusbeltman.nl/madmonarchs/coligny/coligny_bio.htm, 22.10.2016
