請問板上老師
以下句子
He also learns that Cunegonde is in another city, to which
Candide immediately sets off for.
句中的to which該如何分析,不懂為什麼要多一個to出來?
再者,若把to 移到句尾,完全一整個怪.煩請高手釋疑
謝謝
註:完整段落如下
Candide arrives in Venice and learns his servant was robbed
and is now acting as a servant to another man. He also
learns that Cunegonde is in another city, to which Candide
immediately sets off for. Once there, he finds Cunegonde
as well as Pangloss and some other people he thought were
dead. Despite the fact that Cunegonde has grown ugly,
Candide's heart is true and he marries her.

Which 這裡指city,所以to which 指 to the city句子意思就是 set off to the city剛沒看到句尾的for, 句子有點怪

關係副詞 where=to which，where指前面的city 是這樣嗎?