What was the main thing the contracts were had to do with?
The role of architect was usually one with that of master mason, or Magister lathomorum as they are sometimes described in contemporary documents.
С чем главным образом были связаны контракты?
Роль архитектора обычно совпадала с ролью мастера-каменщика или магистра латоморума, как их иногда описывают в современных документах.