>>16193532It is in Rígsþula.
Rígsþula is an eddic poem that tells how Rígr created the three classes of Norse society. The prose introduction tells us that Rígr was the god Heimdallr in disguise. He visited three households in turn and received the hospitality of the couple living in each house. Rígr slept with each couple for three nights, lying between husband and wife, and later a boy was born to each couple, the progenitor of each class.
In the first house, a poor house with coarse food, the boy was called Þræll (Slave), who was crooked, wrinkled and ugly. He grew up to twist rope and carry brushwood. He married a woman named Þír (Slave-woman), and their children spread dung on the fields, dug the turf, and worked with swine and goats. From them came the class of slaves.
In the second house, a well-furnished house with fine, dainty food, the boy was called Karl (Freeman), a red-haired, rosy lad. He married a woman named Snør (Daughter-in-law), and they built a farm, trained oxen, made carts, and created a household. From them came the class of free farmers and other free men.
In the third house, furnished with luxury items and a table set with exotic food and drink, the boy was named Jarl (Earl), with blond hair and piercing eyes. He learned how to make bows and wield shields and throw spears and use runes and make war. He was the master of eighteen farms. Jarl married Erna, and their youngest son was named Konr.
