Estimate the 85th percentile household net worth in the year...

Prompt

Estimate the 85th percentile household net worth in the year 2026 of the following cohort: living individuals who are substantive holders of a Dukedom in the Peerage of England, Scotland, Great Britain, Ireland, or the United Kingdom, explicitly excluding royal dukedoms held by members of the Royal Family. By definition, networth includes everything. For example: home equity, value of pensions/healthcare/other-perks(if any)[even if every citizen is eligible for them], among the other/usual things etc etc etc. Try to make sense out of everything that you know-and-understand, then try to reach a point-estimate.