The Norse god Freyr (Frej or Frö as we call him in Sweden).
Freyr was a fertility god and seems to have been one of the most important gods in the old Norse religion. His name means “lord”. Adam of Bremen wrote that Freyr bestowed peace and pleasure to mortals, and that his likeness was equipped with an erect phallus. In the Prose Edda he is rather described as the one who controls the weather and brings good harvests: “Freyr is the most renowned of the Æsir; he rules over the rain and the shining of the sun, and therewithal the fruit of the earth; and it is good to call on him for fruitful seasons and peace. He governs also the prosperity of men”. His riding animal was the golden boar Gullinbursti.
Freyr, together with his father Njörðr and his sister Freyja, was originally one of the Vanir, a group of gods associated with magic, nature and fertility. During the Æsir-Vanir War, Njörðr was sent to the Æsir as a hostage (together with his children, I assume) which resulted in a peace agreement between the two groups. Of course it has been speculated if the story of the Æsir–Vanir War had its basis in a real war between groups of people with different religions. I once read a theory that the Vanir maybe were surviving elements from the religion of the Nordic Bronze Age. It is impossible to know anything for certain about the Nordic Bronze Age religion due to the lack of written sources, but I still decided to give my version of Freyr a Bronze Age look.