A harrow is an agricultural implement that has a heavy frame set with teeth. The farmer uses a horse to drag the harrow over plowed land to break up clods of dirt, take out weeds, and cover the seeds.
From Walter of Henley's Husbandry:

See also Medieval Farming and Technology.
The term “harrow” also refers to a parchment-maker's frame (e.g., “He was thus sprede o-brode one þe crosse more straite þan any parchemyne-skyne es sprede one þe harowe,” The Privity of the Passion c. 1440).
- Lower border in the Bayeux Tapestry
- Marginal illustration, Collectanea in Domni Pauli Epistolas (BNF Latin 14267, fol. 156v), c. 1170-1180
- October in the Fécamp Psalter (KB 76 F 13, fol. 10v), c. 1180
- Unicorn with a harrow, Bible moralisée (Bodl. 270b, fol. 223v), middle of the 13th century
- Two men and a horse with a harrow, the Luttrell Psalter (British Library Additional 42130, fol. 171r), c. 1325-1340
- April in the frescoes at the Castello Buonconsiglio, c. 1405-1410
- October in the Dunois Hours (British Library Yates Thompson 3, fol. 10r), c. 1436-1450
- Ceres enthroned, with a man driving a harrow with oxen, De mulieribus claris (British Library Royal 20 C V, fol. 13), 1st quarter of the 15th century
- October in the Trés Riches Heures du Duc de Berry, c. 1412-1416
- October in the Dunois Hours (British Library Yates Thompson 3, fol. 10r), c. 1439-1450
- Ceres enthroned, with a man driving a harrow with oxen, De mulieribus claris (British Library Royal 16 G V, fol. 9v), c. 1440
- Society: the laborers, De informatione principum (BNF Fr. 126, fol. 7), c. 1450
- Stained glass panel: October, c. 1450-1475
- Ceres scatters grain behind a farmer drawing a harrow, Épitre d'Othéa (Bodl. 421, fol. 24v), 3rd quarter of the 15th century
- Laborers in the fields and in the barn, Livre des prouffis champestres et ruraux (PML M.232, fol. 62r), c. 1470
- September, a book of hours (PML S.7, fol. 9v), c. 1490
- October, a book of hours (PML M.271, fol. 10r), c. 1495-1500
- October from the Great Book of Hours of Anne of Brittany (BNF Lat 9474, fol. 13r), c. 1500-1508
- September, the Breviary of Eleanor of Portugal (PML M.52, fol. 6r), c. 1500-1510
- October in the Grimani Breviary, 1510s
- September, a book of hours (PML M.307, fol. 5v), c. 1520
- September from a book of hours by Simon Bening, c. 1520-1525
- September, The Golf Book (British Library Add. 24098, fol. 26v), c. 1520-1530
- September, a book of hours (PML M.1175, fol. 11v), c. 1525-1530
- September in the Hennessy Book of Hours (fol. 9v), c. 1530-1540
- The Month of September by Sebastiaan Vrancx
|