I've rented a villa in France for a fortnight for me, my parents, my brother/sister-in-law and niece (8). There are three bedrooms; my parents will share as will my brother's family (so three of them in the largest room with en suite). I will have the third bedroom, presumably the smallest. There are two bathrooms, one of which is the en suite. The villa also has a large living area, kitchen, terrace, garden, swimming pool.
Not sure whether it's relevant, but I've done all the research and booking, negotiated a discount and put the deposit on my credit card.
What is a fair division of the cost? I think per person (although happy to discount niece, so divide by five rather than six or 5.5), my brother thinks per bedroom.