In or before 1665 [his father] Francis Jessop of Broom Hall, Sheffield and [his mother] Barbara Eyre were married.
Around 1665 William Jessop of Broom Hall, Sheffield was born to Francis Jessop of Broom Hall, Sheffield and Barbara Eyre.
In 1683 William Jessop of Broom Hall, Sheffield [aged 18] was admitted to Gray's Inn. He was called to the bar in 1690.
In 1691 [his father] Francis Jessop of Broom Hall, Sheffield died. William Jessop of Broom Hall, Sheffield [aged 26] inherited Broom Hall, Sheffield.
On or after 15th January 1697, the date of the licence, William Jessop of Broom Hall, Sheffield [aged 32] and Mary Darcy were married.
In 1701 William Jessop of Broom Hall, Sheffield [aged 36] stood unsuccessfully for MP Aldborough.
In 1702 William Jessop of Broom Hall, Sheffield [aged 37] was elected MP Aldborough. He was re-elected in 1705. He was returned unopposed in 1708.
In 1707 [his son] James Jessop aka Darcy 2nd Baron Darcy of Navan was born to William Jessop of Broom Hall, Sheffield [aged 42] and [his wife] Mary Darcy.
In 1710 William Jessop of Broom Hall, Sheffield [aged 45] was elected MP Aldborough unopposed.
Abbot John Whethamstede’s Chronicle of the Abbey of St Albans
Abbot John Whethamstede's Register aka Chronicle of his second term at the Abbey of St Albans, 1451-1461, is a remarkable text that describes his first-hand experience of the beginning of the Wars of the Roses including the First and Second Battles of St Albans, 1455 and 1461, respectively, their cause, and their consequences, not least on the Abbey itself. His text also includes Loveday, Blore Heath, Northampton, the Act of Accord, Wakefield, and Towton, and ends with the Coronation of King Edward IV. In addition to the events of the Wars of the Roses, Abbot John, or his scribes who wrote the Chronicle, include details in the life of the Abbey such as charters, letters, land exchanges, visits by legates, and disputes, which provide a rich insight into the day-to-day life of the Abbey, and the challenges faced by its Abbot.
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In 1713 William Jessop of Broom Hall, Sheffield [aged 48] stood unsuccessfully for MP Aldborough.
In 1715 William Jessop of Broom Hall, Sheffield [aged 50] was elected MP Aldborough. He was returned unopposed in 1722, 1727 and 1729 and held the seat until his death on 08 Nov 1734.
On 2nd September 1723 [his son-in-law] Andrew Wilkinson of Boroughbridge, Yorkshire [aged 26] and [his daughter] Barbara Jessop were married. They had seven sons.
In 1733 [his son] James Jessop aka Darcy 2nd Baron Darcy of Navan [aged 26] died unmarried. Baron Darcy of Navan extinct.
On 8th November 1734 William Jessop of Broom Hall, Sheffield [aged 69] died. His son James Jessop aka Darcy 2nd Baron Darcy of Navan had predeceased him without issue. His daughter Barbara Jessop and her husband Andrew Wilkinson of Boroughbridge, Yorkshire [aged 37] inherited Broom Hall, Sheffield.
[his daughter] Barbara Jessop was born to William Jessop of Broom Hall, Sheffield and Mary Darcy. She married 2nd September 1723 Andrew Wilkinson of Boroughbridge, Yorkshire.
father: Francis Jessop of Broom Hall, Sheffield
William Jessop of Broom Hall, Sheffield
Grandfather: Robert Eyre of Highlow, Derbyshire 
mother: Barbara Eyre