Are pat/matronymic surnames still used in the Feroe Isles? As I specifically know at least one dóttir, namely Eivør Pálsdóttir (which I love listening to, especially when she sings in Faroese).
The only source I could find on this in a Danish journal says that between 1992 and 2006 9% of kids got pat/matronymic surnames, so they are probably still used to some degree.