When Frederick William John Augustus Hervey became the seventh marquess on the death of his father in 1985 he inherited a useful pile of possessions, including a 57, 000-acre sheep station in Australia and four oil wells in Louisiana.

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Cotesworth had since received into the nursery establishment two further princes, Frederick and William, in 1763 and 1765.

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Sons Charles, David, Frederick and William inherited Koch Industries after father's death.

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Howard III backed William and Frederick Koch in a fight against their brothers Charles and David for control of Koch Industries.

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Chart taken from the book Greenspan's Bubbles: The Age of Ignorance at the Federal Reserve, by William A. Fleckenstein with Frederick Sheehan.

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