Idun/Idunn/Iduna
The
goddess of eternal youth, married to Bragi,
the god of poetry.
Idun
is the custodian of the golden apples of youth. When the
gods feel old age approaching, they only have to eat of
the apples to become young again.
As
a goddess of fertility, youth and death, it is possible
that she was originally one of the Vanir.
Idun
was once abducted by the storm giant Thiazi and in
this interval the gods began to age rapidly. She was eventually
rescued by Loki who changed her into
a nut and brought her back to her hall. The gods were restored
to youth soon after.
Source:
the Encyclopedia Mythica, please visit their site for
much more