Willoughby was born on November 28th, 1692. Willoughby's father was James Bertie and his mother was Elizabeth Willoughby. His paternal grandparents were James Bertie and Eleanora Lee. He was an only child. He died at the age of 67 on June 10th, 1760.
General Notes
SOURCES: "Descendants of Margaret de Audley" and "Ancestors/Descendants of Maud Grey" http://www.geneastar.org