Ancestry Passport maps citizenship-by-descent routes

Field notes

The country entries distinguish routes rather than treating descent as one universal rule: Ireland's listing centers on an Irish-born grandparent, while Poland's gives no fixed generational limit if the ancestor held citizenship after the modern state was founded. The site also labels routes as open, restricted, changing, or closed. It says its file-preparation tools include official form links, checklists, request letters, and trackers.