However, syphilis was
considered even more terrifying than leprosy, given its ability to
disfigure and decompose the body. According to historical records,
Cesare Borgia – “Duke Valentino” (1476-1507) – the illegitimate son
of Pope Alexander VI, had to wear a black velvet mask to hide the
lesions that scarred his face after he had been afflicted by syphilis [11].