In 1858 Lord Poltimore married Florence Sara Wilhelmine Brinsley Sheridan (d. February 1909), daughter of
Richard Brinsley Sheridan, MP, of Frampton Court. By her he had children including: • Coplestone Richard George Warwick Bampfylde, 3rd Baron Poltimore (1859–1918)
Poltimore Tiara Florence, Lady Poltimore, had a diamond tiara made for her by
Garrards of London in the 1870s, later known as the
Poltimore Tiara. It was sold at auction by the 4th Baron for £5,500. It was made famous after having been worn by
Princess Margaret at her wedding in 1960 in
Westminster Abbey, having been purchased for her shortly beforehand. After the Princess's death, it was sold at auction in 2006 at Christie's, by her children,
Viscount Linley and
Lady Sarah Chatto, for £926,400 ($1,704,576). It can be converted into a necklace and brooches. ==Death and burial==