Henry Augustus Seymour (1771-1847) (1771–1810) Parents Francis Ingram-Seymour-Conway, 2nd Marquess of Hertford Isabella Ingram-Seymour-Conway, Marchioness of Hertford NN Children Henriette Seymour William Seymour Frederick Seymour Sir Francis Seymour, 1st Baronet Siblings Francis Seymour-Conway, 3rd Marquess of Hertford Partners Margaret Williams