Person on a Map card: data source

Configuration Frontend
1

Assume there 2 gps-based “device_tracker” entities.
These trackers are used for some “person”:

person:
  - name: some_person
    ...
    device_trackers:
      - device_tracker.some_tracker_1
      - device_tracker.some_tracker_2

Both trackers are being updated independently from each other.
I believe that the “person” entity uses the latest data (coords) from the most recently updated tracker.
Data for “person” entity are taken either from tracker_1 or from tracker_2.
In DB there are records with coords for both "device_tracker"s & for “person”.

Consider the Map card:

type: map
entities:
  - person.some_person
hours_to_show: 24

Question (seemingly silly):
What data are used to build a track on a map? Only data from DB for the “person” entity, right?
Data in DB for trackers are not used, right?