Latin names on baptism records

[llunwen]

Carnguwch parish, Caernarfonshire
Evani and Lowria Parry had six children christened
Humphredus   15/07/1722
Henricus  24/04/1724
Audoenus  21/04/1726
Guilielmus  14/04/1726
Johannes  03/04/1731
Gwen  15/07/1738
What is the "modern" versions of the boys names?
Thanks in advance for any help.

[curtainhooks]

found this: Audoenus, Audoinus, Oeneus, Oenus = Owen

[curtainhooks]

Guilielmus I think is William.

[curtainhooks]

Is Humphredus just Humphrey maybe, and Henricus just Henry?
Johannes is John I think.

[frostyknight]

Johannes is John. And I agree with curtainhooks that Guilielmus is William.

[curtainhooks]

I didn't know Gwen was a latin name... I thought it was Welsh, short for Gwendolyn, so not sure about that one.
Hope I could help 

[llunwen]

Many thanks for your help. The name Owen has come down the generations, I am going to use that as a little bit more evidence that I am on the correct path. 
Thank you all

[g eli]

I think Gwen might be Owen I looked at the record and it could be an O at the beginning rather than a G, maybe the first Owen died

[PrawnCocktail]

"Gwyn" is a male Welsh name! Female form is Gwen.