An anthropomorphic personification personifies a phenomenon or a concept. In the Incarnations of Immortality series, these are offices held by humans.
Thanatos is the master of Death, the Grim Reaper.
Chronos controls time
Fate is unique in that there are three aspects.
Lachesis is the boss.
Clotho is the Young, inexperienced Aspect of Fate.
Atropos is the oldest aspect of Fate.
Mother Nature controls nature.
Darkness\Nox is the last Incarnation, she is rarely talked
In the real world, various anthropomorphic personifications exist, such as Death (the Grim Reaper), Mother Earth\Mother Nature, Father Time, and Old Man Winter.
In his Discworld series, Terry Pratchett also has this concept in the form of the horsemen of the Apocralypse, Time, and Kaos. (source: )