She was born blonde. Jolanda and Maria are brunettes, Mafalda was blonde.
In the late 19th century Emilio Salgari was Italy's foremost writer of adventure novels. He was knighted in 1897 in recognition for his work.
The Black Corsair, the Chevalier Emilio, is named after himself. He also pays tribute to the House of Savoy, Italy's Royal family to show his gratitude.
Yolanda, the Black Corsair's daughter is named after Princess Yolanda of Savoy.
Pic of Mafalda:
Jolanda's birth: