Possible Clues:

• Presumably she wouldn't have voted for Brexit
• Mother of Timothy in the 'New Testament'
• Sister of Jack and Bobby
• Female name deriving from happy victory in Greek
• Woman's favourable opinion of Europe
• She must favour going into Europe
• Arnold's mother-in-law
• She starts well in Greek and has a fine finish
• ___ Shriver, sister of J.F.K.
• Lady, one from France taken in by English formally