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It may not surprise you to learn that among the hundreds of companies that the royal family patronise are eight champagne houses. But also on the list of royal warrants, there’s a scaffolding company, a sacks supplier, a broomstick maker and Weetabix (so now we know what the Queen has for breakfast). With the exception of new technology firms, they’re all well established companies, many dating back to the 1800s and even the 1700s.