Depending on the measure used, £1,700 in 1575 could equate to either £324,000 (using the retail price index) or £4,290,000 (using the average earnings index). For comparison, a wealthy knight like William Darrell, owning 25 manors, enjoyed an annual income of around £2000.[94] ↑ It is difficult to accurately compare 16th century and modern prices or incomes.