Mathias Mathesius (de Halikko)

http://suku.genealogia.fi/showthread.php?t=11808

Genealogical connection between the German reformer Johannes Mathesius and the finnish Mathesius family is just a legend. The finnish Mathesius family may have taken the name from their home farm called "Mattila." The father of Georgius Mathiae Mathesius de Halikko may have been the owner of that farm. Georgius Mathiae Mathesius de Halikko became a merchant in Stockholm and then latinized the name. It's the most likely explanation of the Mathesius name. [Citation needed]