A patent's priority date is the date that fixes its place in line against later filings. For the Parousya patents it is 26 June 2014, which anchors the whole family.
The longer version
A priority date is the earliest filing date a patent claim can rely on. It decides what counts as prior art and who was first when two inventions overlap. Everything filed afterward is measured against it, which makes the priority date one of the most important facts about a patent.
The Parousya patents share a priority date of 26 June 2014. Both the parent US10657515B2 and its divisional US11392923B2 trace back to that date, so the family's claim to proximity identification and server routed payment is anchored there.
The grants came later. The parent was granted 19 May 2020 and runs until 29 November 2035. The divisional was granted 19 July 2022 and runs until 2 October 2035. The single priority date ties them together.
The Parousya method
The priority date is what dates Parousya's claim to the proximity method. Both patents in the family carry the 26 June 2014 priority date, which sets the family's position against anything filed later.