challenge: What event occurred on 13 November 1871, regarding the Barony of Willoughby de Eresby?
  
  A. Clementina Drummond-Willoughby's coronation as Baroness
  B. The death of Peter Robert Drummond-Burrell, 22nd Baron Willoughby de Eresby
  C. The marriage of Clementina to her husband
  D. The termination of the abeyance of the barony in Clementina's favour
  Answer: 