In "King John", King John's first words to her are "Silence, good mother; hear the embassy"
[DOC] [TLE] Full text of "King John" - Internet Archive [PAR] Mr. Sidney Lee, perhaps our first authority, considers that King John was written 
after .... M terms, and that Philip's son, Lewis the Dauphin, Lewis and should 
marry John's niece, Blanch.