I see.
But now I can't be sure...
Simon's holy memory has been profaned
I will tell you the entire story in my own way:
They called it "Shimon" in the japanese CV3, its a pun for Simon. When they translated and localized the game for the US, they doesnt knew about that and so literally translated the name, that means "Gates of Death".
They tried to fix this giving a more coherent name in HoD calling him "Simon Wraith". They did a splendid job in HoDespair since they changed it to "Hellmont", while this loses the Simon connection, it does a good job to keep the pun alive.