He was born in County Dublin, son of John de Shriggeley senior: the de Shriggeley family are said to have been fairly recent arrivals in Ireland from Cheshire, and took their family name from the village of Pott Shrigley [REF].
The younger John in 1385 married Nicola, daughter of Nicholas Bathe, and widow of Sir Simon Cusacke of Beaurepaire, who had been a substantial landowner in County Meath [REF].