@noinipo,
If I can just add to this debate? First of all, the body is self-cleansing, to a high degree. If it was left to itself, without clothing, it could still get by. Very often, it is the cloth that holds the odours. Moreover, water is not essential; you can 'dry-clean' yourself by rubbing with cloths, or applying perfumed lotions.
Secondly, there is a lot of myth about filth (and filthy kings and queens) in the past. People everywhere spent a lot of time grooming themselves (and grooming other people). Dating from the earliest times of the ancient world, the richest elites would always present themselves as clean and groomed and heavily ornamented - it was part of their power-play. Elizabeth I of England had piped hot water (and a steam room) in at least one of her palaces. If you were poor, you could still be clean (for example) on the religious holy-day, or local feast-day, using minimal eqipment - a bowl of water. the invention of combs, mirrors, cosmetics and soap, occurred in the Eurasian Bronze Age.
Thirdly, everywhere in the world has a different history of cleanliness, and different cleansing customs. It all depends on geographical location, economics, early cultures and religion. But anthropology suggests that childbirth, marriage and death were, universally, all occasions for special bodily cleansing.
That's enough for now!
Best wishes,
Virginia Smith
(Author of 'Clean: a history of personal hygiene and purity', OUP 2008)