SIR Ken Morrison and his family saw their fortune reduce by £167 million last year as the supermarket which bears his name slumped to a £792 million loss. The resultant fall in Morrisons share price reduced the value of the family holdings to £283 million.

However, Bradford-born Sir Ken, now a gentleman farmer in North Yorkshire, and his clan remained at number five in the league table of Yorkshire's wealthiest people, to be published this weekend as part of the 2015 Sunday Times Rich List,

The Morrison family fortune of £733 million puts them in 153rd place nationally.

Motors tycoon Jack Tordoff and his family, which own Bradford-based car retailer JCT 600, moved up a place to eighth in the regional table, as their wealth increased by £15 million to £368 million. The Tordoffs are at 280 in the UK table.

JCT 600, based at Apperley Bridge, operates 50 dealerships across Yorkshire, the North East and the East Midlands .

Entrepreneur Alan Lewis , whose Hartley Investment Group grew out of the former Illingworth Morris wool textile business, which included Salts Mill, remains in 13th place regionally by maintaining his fortune at £270 million. Mr Lewis, who also owns the famous luxury coat brand Crombie, is in equal 371st place nationally.

Brothers Eddie and Malcolm Healey are the richest people in Yorkshire, having seen their joint fortune grow by £200m in the past 12 months.

Eddie, 77, sold his Parc Trostre retail park, near Llanelli in Wales, last year for £156m, having made £420m from the sale of the Meadowhall Centre outside Sheffield some years ago.

Lord Kirkham, in second place in the county, has a fortune based on the outstanding success of the DFS furniture retail chain. The group was sold for £400m in 2010, but a previous float and subsequent share sales had generated £450m for the Kirkham family.

The 2015 Sunday Times Rich List is the biggest issue ever published since it first appeared in 1989. It charts the wealth of the 1,000 richest people in the UK and the 250 richest in Ireland.

The list is based on identifiable wealth, including land, property, other assets such as art and racehorses, or significant shares in publicly quoted companies. It excludes bank accounts, to which it has no access. It is compiled by Philip Beresford, the leading British expert on wealth, and edited by Ian Coxon.