In the Record of Ragnarok, Siegfried is imprisoned in Tartarus for what seems to be a serious crime. But what are the reasons that led to Odin’s imprisonment of Siegfried? Why does Odin resort to such drastic measures against this demigod?
1. Siegfried’s Imprisonment Due to the Theft of the Magical Sword Gram

This reason has been uncovered in the ongoing research regarding the character. From what has been gathered, it is believed that Siegfried stole the magical sword Gram and killed the dragon Fafnir. This action is viewed as a crime that warranted his imprisonment in Tartarus, serving as a preventive measure against his rebellion against the divine and even against higher gods.
However, in reality, the sword Gram is essentially a divine artifact of Odin, and its original essence is revealed to be linked to the primal god of Northern Europe, a fact that is only disclosed in the latest chapters.
Moreover, considering the circumstances, Siegfried’s actions do not reach a level that would classify him as a true villain. Therefore, it can be argued that Siegfried has been unjustly accused throughout his timeline.
2. Initially, Siegfried was Imprisoned by Odin Because He is the Chosen One
The reason Odin imprisoned Siegfried lies in his own ambitions. Odin discovered that Siegfried is the Chosen One, suitable for executing his plan to break the seal of Gleipnir, which is currently imprisoning other primal gods such as Ymir, Satan, and Chaos.
Thus, Odin imprisoned him and did not allow his beloved Brunhilde to die until his plan was realized.
3. Siegfried’s Divine Origin Attracts Odin’s Attention
There are certain criteria for a Chosen One that Odin needs in order to utilize all the divine artifacts related to the primal gods. The divine artifacts include the elements of earth, sky, water, and darkness.
Odin indeed sought out an individual who is suitable, and that person is Siegfried, who embodies both the divine and the human. Thus, the elements of the earth and sky have been fulfilled.
4. To Perfect the Divine Attributes of the Chosen One, Odin Imprisons Siegfried in Tartarus and Assigns Him the Burden of Divine Sin
To complete the divine attributes of the Chosen One, Odin took measures against Siegfried.
The aftermath of the imprisonment leaves a gap between the human and the god, symbolizing despair. Furthermore, Siegfried is still viewed as a victim of divine sin, representing a shadow of despair.
Thus, Siegfried has fallen victim to the immense power of divine wrath. The source of life still remains the essence of humanity.
However, due to this overwhelming strength, Siegfried is certain to perish after breaking the seal of Gleipnir. And especially, the transformation of the Yggdrasil roots will begin, causing the primal gods to be in great turmoil.