Aurgelmir is a giant of which mythology?

In Norse mythology, Aurgelmir, also called Ymir or the first being, is a giant who was the father of all the giants.

The Norse creation myth is told in detail by Snorri Sturluson, the Icelandic scholar and law-speaker (the person reciting the laws at the assembly) who in the 13th century tried to retell these myths in a text called "Gylfaginning" ("The Deceiving of Gylfi"), part of a larger book, the Prose Edda.

In the beginning, Aurgelmir was born when fire from Muspelheim world and ice from Niflheim world met in the abyss of Ginnungagap. He was suckled by the cow Audhumla for his nourishment. When he slept, several other giants were conceived asexually in his hermaphroditic body, and spontaneously sprang from his legs and the sweat from his armpits.

The cow received her nourishment from a salt lick, and as she licked, a being named Buri, the first of the Aesir gods, was freed from within the salt. He produced a son, Borr, who mated with Bestla, one of Ymir’s descendants. From their union came Odin, the chief of the Aesir, and his two brothers, Vili and Ve.

The divine brothers then slew him and fashioned the earth from his flesh, the seas from his blood, mountains from his bones, stones from his teeth, the sky from his skull, and clouds from his brain.

Aurgelmir is the personification of chaos before creation, and Ginnungagap represents the impersonal void. However, it contains the basic material (his body of him) with which all things can be made.