Complex sentence: 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.
Split into simpler sentences: 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.