Death (Discworld)
Death is a fictional character in Terry Pratchett's "Discworld" series and a parody of several other personifications of death. Like most Grim Reapers, he is a black-robed skeleton usually carrying a scythe. His jurisdiction is specifically the Discworld itself; he is only a part, or minion, of Azrael, the universal Death. He has been generally used by Pratchett to explore the problems of human existence, and has become more sympathetic throughout the series.
Lady Death
Lady Death finally ended Lucifer's control over her by casting him through Heaven's Gate (a place where evil cannot go), and in doing so became the new ruler of Hell. Many of the beings living in hell believe that the ascension of Lady Death signaled the beginning of the age of judgment – the final battle between good and evil for the fate of the Earth.
Since 2005, Avatar Press has published Lady Death titles. Since they only have the rights to Lady Death alone (without the rest of the Chaos! Comics characters that were so intertwined with her original story), Lady Death has been given a new origin story, with notable differences to the story told at Chaos! Comics.