Three cheers for whoever came up with the title of the Duke of Sussex’s upcoming autobiography, Spare. It’s punchy – and it evokes a sense of sadness. Is this how Harry has always felt? Like a disposable spare part?
The ‘heir and the spare’ describes the first in line to the throne and the ‘reserve’ monarch. It may sound cruel – and perhaps it is – but as soon as hereditary systems were established, queens and kings recognised that to ensure continuity and stability for their monarchy, it was necessary to have a healthy male heir and one in reserve should the eldest one die – which they often did.
Spares throughout history have struggled to define their role. But that’s not necessarily a bad thing; many have lived intriguing lives. At the end of the 17th century, Prince Philippe of France, the younger brother of Louis XIV, spent his time – God forbid – having fun.

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