I have been constantly messing these up. Thanks for the clarification!
Grace
Gunnar lét þess kost. Hann lét þá kanna valinn og taka fé það er dauðir
menn
höfðu átt en
Gunnar allowed this choice. He allowed then to search the dead and take
that wealth which (the) dead men had had and
þá = acc plural of sá or hann, ie them. In my experience þá can be 4
different things: adverb = then (most common), pronoun = acc pl of sá or
hann, them those (masc), pronoun = acc sg of sú, that (fem), or verb =
past part of þiggja, received, accepted.