Ive done a lot of research over the years, and ive found out that there are many disagreements on the existence of Death as a real entity.
But if you look into any civilizations history and beliefs, there is always an entity like that. Not always with the same name, but still the same. any thoughts on the subject?
Everyone has a different view, you cannot really expect for everyone to believe in death as a entity however death itself is a fact. It has always been and shall always be, it is unpreventable and undeniable; it has always been wondered of a life beyond death, an afterlife, reincarnation, heaven, hell, etc.
Due to this, belief systems have been born with making death as a deity or an entity, you see it within Mexican tradition "The Santa Muerte" where they view death as an entity of not just ending but of life, love, etc. or within Christian beliefs of the "Angel of Death". I think the belief of what happens after death will always be different for everyone, particularly because none truly knows.
Many cultures which have a personification of death have more a representation of an entity which brings death in some cases (in some cases, for example, as an explanation of why someone may survive a situation when someone else dies in the same event) or one which comes at the moment of death to guide the person to the next stage. Of course there are many variations of the same ideas as well as many completely different ideas about entities associated with death.
Ultimately in my opinion it comes down to a desire to explain the universe, namely what happens at death in this case.
A lot of the time you find Gods are symbolic of certain phases of life, trnsitions of energy, and phenomena which were and are unexplainable. Death is one such phenomenon. It is the transition from one form of life to another, the energy of the body feeds the Earth or other animals, and some belief systems believe in the existence of an afterlife.
You also have death being a popular figure in medieval times due to the black plague wiping most of the population of Europe out! People couldn't understand what was going on and death became a popular anthropomorphic figure with symbols taken from the Roman God Saturn who was the God of the Harvest.
Death in the medieval ages was also a symbol utilised in alchemy and referred to the stage of putrefaction.
I think you are correct there is always an entity representing death, but as with most types of deities, the way they are presented, understood, and approached differs between culture to culture, and also with time. As we change, as our understandings change, so do our Gods. If they and we didn't, we'd still be sacrificing humans on a pyre!
Many, including myself, would disagree with you Ioakeim.
In most cultures there is a "Death", perhaps not called by this English word but definitely referred in some way as having been deceased and the presence of which being associated with lifelessness.
Now the interesting part comes into play when researching the specific entities/deities of death. One might notice that some of these entities are not associated with the death of a person (perhaps because in some of these cultures humans don't "die") but of a place, time, or concept.