Lady Harriot Pleydell-Bouverie (born 1935) (b. 1935) Parents Helen Olivia Adeane William Pleydell-Bouverie, 7th Earl of Radnor Children Sophia Tennant Lysander Tennant Siblings Jacob Pleydell-Bouverie, 8th Earl of Radnor Lady Jane Pleydell-Bouverie Reuben Pleydell-Bouverie Lady Pheobe Pleydell-Bouverie Lady Belinda Pleydell-Bouverie Richard Oakley Pleydell-Bouverie Partners Mark Tennant