Felice

This name is unisex.

---

Felice was the name of the lady love of Guy of Warwick.

---

It was a very popular girls name in the Middle Ages in England (pronounced differently from the Italian masculine name). It shares the same origin and meaning as the Italian name, it was just pronounced differently in Medieval England for girls.

---

This name was very popular for girls in Medieval England, up all the way at #22 in the 1377-81 poll taxes.

---

Source: https://www.britishbabynames.com/blog/historic-names/

Also Sardinian: https://sc.wikipedia.org/wiki/G%C3%B2samu_e_Damianu -- Paba Felice IV

Also Corsican: https://fr.wikibooks.org/wiki/Pr%C3%A9noms_corses
You'll find bearers on social media.

Also used as a female name in Italy. An example is Felice della Rovere, illegitimate daughter of Pope Julius II (c. 1483).

I second SSF's comment about Felice being also used as a feminine name in Italy. While I was compiling data from civil registration records from the province of Bergamo in 1899, I noticed that, although used in small numbers, Felice is (sort of) equally used on both genders.
The adjective 'Felice' is derived from Latin 'fēlīcem,' the accusative of 'fēlīx' and that accusative term has both a masculine and feminine gender, so it does make sense that Felice is used on both genders, much like how Celeste came to be used on both genders.

---

Nowadays, it's almost always used for boys (2,172 boys from 1999-2015 according to ISTAT) but there were around 12-14 girls born with that name over the same time period.

In Sweden Felice is used as a female name, as a variant of Felicia.