Debrett’s, the 235-year-old authority on the UK aristocracy and matters of etiquette, was today sold in a deal worth £1m (€1.4m).

A fall in the cost of oil to its lowest level in three months left the FTSE 100 Index on course for a positive end to the week today.

Debrett’s, the 235-year-old authority on the UK aristocracy and matters of etiquette, was today sold in a deal worth £1m (€1.4m).