In order to start research, or to simply determine its prospects, first you need to find out what data you have at the moment. Key information for deep research:
- Names of the oldest ancestors for each line that you want to explore;
- Date and place of birth / marriage / death;
- Religion (until 1917).
Therefore, first of all, you should collect everything that you remember about your living relatives and ancestors and if possible, discuss this with your relatives, who are more knowledgeable on this matter.