Here is the average asset allocation of family offices a couple of years ago according to UBS:
It's odd that they count commodities separately from alternatives. Perhaps it was used in a study about commodity investing. Here is our current allocation that was partly inspired by university endowments:
It's quite close, though we have more in commodities (=gold) and less in cash. Alternatives here includes private equity, real estate, hedge funds, futures, and art. As usual, the value of our house is not included.