Henry de Lacy, 3rd Earl of Lincoln

Henry de Lacy, 3rd Earl of Lincoln, Baron of Pontefract (c.1251 – February 1311) was an English nobleman and confidant of King Edward I 'Longshanks'.

Seal of Henry de Lacy, Earl of Lincoln.

Henry was the son of Edmund de Lacy, Baron of Pontefract who died when he was a young child. He was also heir to his paternal grandmother Margaret de Quincy, Countess of Lincoln who died when he was a teenager. As ward to large and important estates from both his father and more importantly his grandmother, he was educated at court.

In 1258 he had inherited his titles and lands from his father, which included Baron of Pontefract, Baron of Halton, and Constable of Chester and in about 1266 he had inherited his titles and lands, which included the Earl of Lincoln, from his paternal grandmother Margaret de Quincy. However being a minor in both cases his inheritance was held in a wardship by his mother, and with the help of his grandmother in the years before her death. In 1272, on reaching the age of majority, which was 21, he became the Earl of Lincoln.

He became Chief Councillor to Edward I. While the king was engaged in military conflicts with the Scots, Henry was appointed Protector of the Realm.

Following the English Conquest of Wales in 1282 (known in Wales as the Norman Conquest) in which Henry took part, he was granted the Lordship of Denbigh. He authorised the building of Denbigh Castle. At the battle of Falkirk 1298 and in the siege of Carlaverock 1300 he bore as arms: Or, a lion rampant purpure.

In November 1300, he was sent on a mission to Rome to complain to the Pope about injury done by the Scots.

He was Lord of Pontefract, the 10th Baron of Halton, and Lord of Denbigh. He was also the 7th Lord of Bowland, so-called Lord of the Fells, being the last member of his family to hold that title.

He transferred the monastery from Stanlow to Whalley. He is the addressee, or joint composer, of a poem (a tenson) by Walter of Bibbesworth about crusading, La pleinte par entre missire Henry de Lacy et sire Wauter de Bybelesworthe pur la croiserie en la terre seinte.

He married twice:

• Firstly to Margaret Longespée, daughter of Sir William III Longespée by his wife Maud de Clifford. Their only daughter and heiress was Alice de Lacy, 4th Countess of Lincoln (1281–1348) who married Thomas, Earl of Lancaster.
• Secondly to Joan FitzMartin (died 1322), as her first husband, sister of William II FitzMartin (died 1326), feudal baron of Barnstaple, Devon. No children resulted.

He died at his London home, Lincoln's Inn, and was buried in the old St Paul's Cathedral. His grave and monument were destroyed along with the cathedral in the Great Fire of London in 1666. A modern monument in the crypt lists De Lacy among the important graves lost.