François IV de Beauharnais
François IV de Beauharnais, squire, sieur de la Grillère, de la Boische, de La Chaussée, de Beaumont and de Beauville, was a French nobleman. His father was Jean de Beauharnais, maître d'Hôtel ordinaire du roi. His mother was Marie Mallet, and he had 2 siblings.
In 1663 he married Marguerite Françoise de Pyvart de Chastullé - among their 14 children was the politician Claude de Beauharnais (1680–1738), Charles de la Boische, Marquis de Beauharnois and François de Beauharnois de la Chaussaye, Baron de Beauville. Francis IV of Beauharnais was one of the great-grandfathers of the family Eslandoost de Beauville.