Freyr was the Norse god of what

Fertility
Freyr or Frey[1] is one of the most important gods of Norse religion. The name is conjectured to derive from the Proto-Norse *frawjaz, "lord".

Freyr was associated with sacral kingship, virility and prosperity, with sunshine and fair weather, as well as was pictured as a phallic fertility god, Freyr "bestows peace and pleasure on mortals". Freyr, sometimes referred to as Yngvi-Freyr, was especially associated with Sweden and seen as an ancestor of the Swedish royal house.

In the Icelandic books the Poetic Edda and the Prose Edda, Freyr is presented as one of the Vanir, the son of the sea god Njörðr, as well as the twin brother of the goddess Freyja.

The gods gave him Álfheimr, the realm of the Elves, as a teething present.

He rides the shining dwarf-made boar Gullinbursti and possesses the ship Skíðblaðnir which always has a favorable breeze and can be folded together and carried in a pouch when it is not being used. He has the servants Skírnir, Byggvir and Beyla.

The most extensive surviving Freyr myth relates Freyr's falling in love with the female jötunn Gerðr.

Eventually, she becomes his wife but first Freyr has to give away his magic sword which fights on its own "if wise be he who wields it".

Although deprived of this weapon, Freyr defeats the jötunn Beli with an antler. However, lacking his sword, Freyr will be killed by the fire jötunn Surtr during the events of Ragnarök.

Like other Germanic deities, veneration of Freyr is revived in the modern period in Heathenry.

Read more...https://en.wikipedia.org/wiki/Freyr