Analysis of information sources in references of the Wikipedia article "Christine of France" in English language version.
Back in New York, Brooke sets out on the trail of her very different paternal ancestry, the family of her paternal grandmother, the glamour heiress Marina Torlonia. Her journey takes her to Rome where she discovers that as bankers to the Vatican, the Torlonia family became one of the wealthiest and most influential families in 19th-century Italy. But it doesn't end there – on the trail of yet another illustrious ancestor, the mysteriously titled 'Madame Royale', Brooke heads to Paris and the very heart of French nobility.
