...ahh it's Royalty speak..
Formal and informal in English:
"Thou" was the nominative case (subject, predicate nominative, etc.)
for second person singular; "thee" was the objective case form of the
same; "ye" was the nominative case form for second person PLURAL; and
"you" was the objective case form of it. The second person plural
("ye" and "you" --- possessive "your") began to be used among
royalty, as the kings, queens, lords, etc. referred to themselves in
the PLURAL, as a distinction from the common people. The king might
say, referring ONLY to HIMSELF, "WE would like OUR tea now." So the
servants, courtiers, and other common people used the second person
plural to speak to them. I will bring you (indirect object, second
person plural) your tea right away, sire." After many years,
EVERYONE was using the formal (which was really plural) to speak to
EVERYONE, but the nominative form, "ye", finally disappeared, as did
both forms of the second person singular, and its other case forms as
well, such as the genitive (possessive), "thy" and "thine".