The Prose Edda on Frode
The Younger Edda: > Chapter Iv. > Menja And Fenja.
attestation: Frode's peace was so complete that no man injured another, even meeting his father's or brother's killer, and a gold ring could lie safely on Jalanger's heath
"No man injured the other, even though he might meet, loose or in chains, his father's or brother's bane. There was no thief or robber, so that a gold ring would be a long time on Jalanger's heath."
attestation: Frode gave Fenja and Menja no rest except while they sang the Grottesong, during which they ground out a hostile army against him
"he gave them no longer time to rest or sleep than while the cuckoo was silent or while they sang a song. It is said that they sang the song called the Grottesong, and before they ended it they ground out a host against Frode"
attestation: Fenja and Menja were bought from King Fjolner of Svithjod; they were large and strong
"King Frode sent messengers to Svithjod, to the king whose name was Fjolner, and bought there two maid-servants, whose names were Fenja and Menja. They were large and strong."
The Younger Edda: > Chapter Iv. > The Grottesong.
attestation: King Frode gave the giantesses neither rest nor peace, demanding they keep grinding at the mill
"Nor rest nor peace He gave to them: He would hear the maidens Turn the mill."
attribution: Frode was criticized by the giantesses for not asking about their descent when he bought them, looking only at their strength and fair faces
"Frode! you were not Wary enough,-- You friend of men,-- When maids you bought! At their strength you looked, And at their fair faces, But you asked no questions About their descent."
relationship: King Frode was called Fridleif's son, establishing his royal lineage
"For King Frode, Fridleif's son."
attribution: Frode only allowed the giantesses to rest as long as it took to sing a song, ordering them not to sleep longer than the cuckoo on the hall
"Sleep not longer Than the cuckoo on the hall, Or only while A song I sing:"