The 11 richest people in Scotland

Net worth: £1 billion

Age: 61, 73

The sibling pair made their money after founding Scottish-based bus company Stagecoach. They subsequently founded train company South West Trains and coach operator Megabus, both of which have operations across the UK.

Net worth: £1.025 billion

Age: 88

Clark made his billion-pound fortune from car dealerships. He started buying and selling cars in 1954 and built it into an empire. Arnold Clark Automobiles is now the largest independent family-run car dealership in the world, with over 300 branches.

Clark also owns "The Drum," a yacht previously owned by singer Simon Le Bon (pictured).

Net worth: £1.05 billion

Age: 50

Day lives in Cumbria, England, but made his fortune from a retail portfolio which includes Scottish-based clothes company Edinburgh Woollen Mill and Cardiff-based clothes chain Peacocks.

Net worth: £1.07 billion

Age: 64

McColl made his fortune after transforming an ailing engineering firm, Clyde Blowers, into one of the largest private engineering groups in the UK. McColl retains a £1.02 billion stake in the Clyde Blowers, which is worth £1.7 billion.

Net worth: £1.28 billion

Age: N/A

The Thomson family derive their wealth from family firm DC Thomson, the international publisher which owns racing newspaper The Sunday Post and numerous comics, including the Beano. Its profits in 2014/15 were £30 million, and it is based in Dundee.

Net worth: £1.28 billion.

Age: 73, 69

The sibling pair live in London but were born in Scotland. They previously owned Norweigan firm Framo, the industrial giant which makes cargo pumps for tanker ships, and sold the firm in £1.1 billion in 2014.

Net worth: £1.44 billion

Age: 73

Wood was one of the main beneficiaries of the North Sea oil boom which occurred when oil was discovered off the coast of Scotland in the 1970s. He turned a small fishing company into an international energy services company worth £2.5 billion. He is known for his frugality.

Net worth: £1.7 billion

Age: 87

Al Fayed is best-known for his ownership of department store Harrods and the Paris Ritz hotel. He spends a large part of his time in Scotland, where he owns a 65,000-acre estate in the Highlands and wears a kilt.

Net worth: £1.735 billion

Age: 84

Bahrain-born Al-Tajir's international business portfolio includes stakes in oil, gas, and property firms. He owns Scottish mineral water company Highland Spring, and has a 24,000-acre estate in Perthshire, Scotland.

Net worth: £2.16 billion

Age: 58

The richest family in Scotland made its fortune from the world-famous Glenfiddich whisky brand, which is now run by the fifth-generation descendants of its founder, William Grant. It is the world's third-largest producer of Scotch whisky, and has over £1 billion in assets.