We want to divide all those carrying variations of the Mathia– Matthia name into "origin clans" using Y-DNA. Connecting every single Mathia – Matthia surname holder from different countries and continents with one of the known branches of the broad Mat(t)hia family would be a great help to people with inadequate paper trails. Our second major goal is to shed some light onto migrations of Mat(t)hia males both before and after the onset of record keeping. To achieve this, we want to look for possible genetic connections between known family lines from Poland, Germany, France, Slovakia, United States and possibly more. We invite all Mathia – Matthia (and variants) males (or females) to participate in the project to achieve these goals.