Page "Earl of Northumberland" Paragraph 22

Various references use at least three different sequences of numbers for the Earls ; the ones shown here are those used in the individual articles on the 12 Earls.

The major difference arises from the question of whether Henry ( 1394 – 1455 ) was 1st as a new creation or 2nd as a restoration of the rights of his grandfather, Henry ( 1341 – 1408 )