What is Kalands Brethren?

The Kalands Brethren, Kalandbrüder in German, Fratres Calendarii in Latin, were religious and charitable associations of priests and laymen, especially numerous in Northern and Central Germany, which held regular meetings for religious edification and instruction, and also to encourage works of charity and prayers for the dead. From Germany the Kaland confraternities spread to Denmark, Norway, Hungary, and France.