Editors. "Protestant cantons of Berne, Geneva and Zurich ally against Savoy". The Literary Encyclopedia. First published 01 February 2011
[http://www.litencyc.com/php/stopics.php?rec=true&UID=15307, accessed 24 May 2013.]
In Switzerland, a defensive alliance is signed between the Protestant cantons of Berne, Geneva and Zurich against Savoy, which is threatening Geneva. In response, the Catholic cantons sign an equivalent alliance with Philip II of Spain.