First of all, there's nothing 16th century about the perfumes. It's just marketing schtick, like with most other perfume houses. The intereting question, of course, is, are they any good? I was sorely disappointed in those I tried, with one exception. They may be OK for what little they cost in Europe, but IMO the quality (of those I've tried, somewhere between drugstore and designer) just can't keep up with the ridiculous price charged in the US.
Fresco de Vetiver - rather heavily inspired by GIT (see my review), but all in all quite nice.
Tabacco - Sweet cheap tobacco blossom, Boellis Panama is infinitely better, if you like this sort of thing.
Sandalo Indiano - A generic wood, no authentic sandalwood. Apparently they have a Mysore which is (closer to) the real thing, also twice the regular price.
Cuoio Russo di Russia - not a trace of birch tar, it's not Russian leather & unfortunately it's nothing else worth mentioning
Spezie de Medici - I honestly can't fathom comparisons of this with Creed's Orange Spice. It's fruit plus a chilipeppernote (and burns - it obviously contains capsaicin) and smells as if you've been lying in bell-peper flavored potato chips for two days.
Allegedly these are natural perfumes (at 20 Euros a bottle - hell yeah), but I'd rather invest my money in Primavera essential oils or serious natural perfumers such as Ayala Moriel or profumo.it