Source: Weis, Sheppard, Beal, The Magna Charta Sureties, 1215, 5th Ed.,Genealogical Publishing Co., Baltimore, [1999], 54-1.
JOHN de LACIE, the Surety, born 1192, seventh Baron of Halton Castle andhereditary constable of Chester, was one of the earliest Barons to takeup arms at the time of Magna Charta. He was also appointed to see thatthe new statutes were properly carried into effect and observed in thecounties of York and Nottingham. He was excommunicated by the Pope. Uponthe accession of King Henry III, he joined a party of noblemen and made apilgrimage to the Holy Land, rendering valuable service at the Siege ofDamietta.
In 1232 Lacie was made Earl of Lincoln and, in 1240, governor of Chesterand Beeston Castles. He died 22 July 1240, and was buried in theCistercian Abbey of Stanlaw in co. Chester. The monk, Matthew Paris,records: "On the 22d day of July, in this year (1240), which was St.Magdalen's Day, John, Earl of Lincoln, after suffering from a longillness went the way of all flesh."
His first wife was Alice, daughter of Gilbert 'd’Aquila, but by her hehad no issue. She died in 1215 and he married second, after his markedgallantry at the Siege of Damietta, Margaret, only daughter and heiressof Robert de Quincey, a fellow Crusader, who died in the Holy Land,eldest son of Saire de Quincey, the Surety. They had three children, LadyMargaret survived him and married second Walter Marshall, Earl ofPembroke.[