In the begining of the 20th century in Poland land aristocracy had founded unions of the families. In
Wielkopolska which was a part of Germany in this time, four families (Chłapowski, Żółtowski,
Moszczeński i Szuman) founded their unions to the begining of the Great War. Every of this union had
the statutes and funds for their activity. Membership had laws and duties. Ideas of union were consolidation
of family, material help for member who needed it, helping young members to get the education and
upbringing of young people. Unions of the families performed also different functions of family. I used
achievements of Poznań School of Family Reserch to show how these organisations realised them in
micro and macro structure of Polish society