Baron Grandison

Baron Grandison was by modern doctrine a title in the Peerage of England created for two brothers, Sir Otton de Grandson and Sir William Grandison, who were summoned to Parliament in 1299. Any hereditary barony for Sir Otho lapsed on his death in 1328, as did that for Sir William on the death of his grandson Thomas Grandison in 1375.
The family originated in what is now the Swiss canton of Vaud by the name of Grandson, the anglicised Grandison was a shortening of the Latin form Grandisono. The family origins lay in the grant of land by Lake Neuchâtel during the last years of the Second Kingdom of Burgundy.

Simplified descent

Pierre de Grandson marries Agnès de Neuchâtel, their children include

Otto de Grandson. Sheriff of Tipperary, Lord of the Channel Islands, Lieutenant of Gascony and Justiciar of North Wales
Gérard de Grandson, Bishop of Verdun
Henri de Grandson, Pastor of Greystoke, Cumberland, Bishop of Verdun
Jacques de Grandson, Seigneur de Belmont from whom the Swiss famille de Grandson will descend.
William Grandison married Jeanne de Gruyère then Sybille Tregoz, their children include
*Piers Grandison
*John Grandison, Bishop of Exeter.
*Sir Otho Grandison
**Thomas Grandison.
*Agnes Grandison, married John Northwood.
*Mabel Grandison, married Sir John Pateshull.
*Catherine Grandison, married William Montagu, 1st Earl of Salisbury.

The British royal family descends from William through two of his daughters. From Catherine de Grandson through the Montacute and Mortimer families and Richard, Earl of Cambridge, grandfather of Edward IV. From Mabel de Grandson through the Beauchamp and Beaufort families to Henry VII, founder of the Tudor dynasty.

Abeyance

In 1858, after five centuries in abeyance, Sir Henry Paston-Bedingfeld, 6th Baronet of Oxburgh Hall was declared by the Committee of Privileges to be one of the co-heirs of the Barony of Grandison "through "the families of Paston, Tuddenham, Patteshull, and Grandison, heir to Dame Katherine Tuddenham, in whom one-fourth of a third of the representation of the Barony of Grandison had vested."