I like the combo
Gwenfrewi Melisande! Yes, it's kind of overkill, but in a good way.
Truthfully, I think I like the English version,
Winifred better. I think it's the -ewi ending. I love all the other
Gwen names, my favorite of yours is
Gwenllian, my all-time fave is Gwenydd ("morning star").