The gods took away Mundilferi's children because he had the audacity to name them for this pair. In 
The gods took away Mundilferi's children because he had the audacity to name them for this pair. In the Alvissmol, Alvis claims that the dwarves call one of this pair "The Deceiver of Dvalin," and proceeds to succumb to its power. A disguised rime-giant demanded them, in addition to the hand of Freya in marriage, as a reward for rebuilding the walls of Asgard. At Ragnarok, they are slated to be consumed by the wolves Hati and Skoll. FTP, name these celestial bodies known in Norse mythology as Mani and Sol.
The gods took away Mundilferi's children because he had the audacity to name them for this pair.
the sun and the moon (accept Sol and Mani before the end; order does not matter)