Possible Clues:

• Supplanted
• Unseated
• Driven out
• Unseated duke mistreated special daughter
• Moved from its proper position
• Cut up about small dalliance, almost moved
• Forced to leave home, resolve shortly to cross mountains, heading west
• Forced out
• Diana's among the first few to be evicted
• Was Sidney up among the first three and yet supplanted?