rabbitrunningSubjective/objective (as near as I can remember):- thee = du, thou = dig, ye = I, you = jer. English has never had a form like Scandinavian 'De' or German 'Sie', where you address a person as "They".
And you're right about "ye olde shoppe" - the 'thorn' character may have looked like a 'y', but was always pronounced 'th'.
Wassail! V