Question: What is the date of death of Thomas Lyon-Bowes, Lord Glamis's father?
Answer: 27 August 1846

His eldest son, Thomas Lyon-Bowes became the heir to the Earldom of Strathmore and Kinghorne. Thomas Lyon-Bowes, 11th Earl of Strathmore and Kinghorne (3 May 1773 – 27 August 1846) was a Scottish nobleman and peer. He was the third son of John Bowes, 9th Earl of Strathmore and Kinghorne, and Mary Bowes, Countess of Strathmore and Kinghorne