The Manor of Aienho (possibly translated from the saxon "Aegas Hoh", meaning "Hill spur of a man called Aega") is held in the King’s name by a Saxon Thane, Asgar the Staller (or Constable)

Battle of Hastings.
English throne seized by William the Conqueror. Manor of Aienho granted by William to Geoffrey de Mandeville, Lord of Aultone

Domesday Book
Entry for Aynho reads:
GEOFFREY DE MANNEVILLE holds of the King AIENHO. There are 3 hides and the fifth part of a hide. There is land for 8 ploughs. Of this land 1 hide and the fifth part of 1 hide is in demesne, and there 3 ploughs and 8 serfs; and 23 villeins and 9 bordars, with 5 ploughs. There is a mill rendering 10 shillings, and 20 acres of meadow. It was worth 6 pounds; now 8 pounds. Asgar held it in King Edwards time.

Geoffrey de Mandeville dies and is interred in Westminster Abbey. Having been pre-deceased by his son, William, the manor of Aienho  passes to his grandson, Geoffrey FitzPiers de Mandeville, Earl of Essex.

Geoffrey de Mandeville II dies, having disinherited his eldest son, Ernulf. The manor passes to his two younger sons, Geoffrey and William in turn. William gives the manor to Roger FitzRichard, 1^st Lord of Warkworth, the husband of his aunt Alice (Alicia) de Vere.

Travellers (Pilgrims) hospital founded in Aynho by Roger FitzRichard.

Roger FitzRichard dies. Manor passes to Alice de Vere

Alice de Vere dies. Manor of Aynho (valued at £30) passes to her son, Robert FitzRoger, 2^nd Baron Warkworth and Lord Clavering.

Robert FitzRoger dies. Manor passes to his son John, 3^rd Baron Warkworth.

Magna Carta signed at Runnymede. John FitzRobert was one of the 25 barons selected to enforce the terms of Magna Carta. To show his displeasure, King John seizes Aynho manor and gives it to one Thomas de  St Valery. The lordship reverts to John a few years later when he makes his peace with the King.

John FitzRobert dies leaving a widow, Ada de Balliol, and two underage sons.  Ada buys the wardship of her sons from the king for 2,000 marks (about £1,300).

Ada de Balliol’s elder son and heir to the manor, Roger FitzJohn is killed in France leaving a widow, Isabella, and son, Robert.

On coming of age, Robert FitzRoger becomes Baron Clavering and Lord of the manor of Aynho.

Robert FitzRoger dies. His son, John FitzRobert succeeds to the Barony of Clavering and Lordship of the manor of Aynho.

Pressed by creditors and without an heir John concludes with the king an arrangement, which allows him to keep the manor of Aynho for his lifetime and that of his wife, after which it was to pass, by way of his sister, to his nephew, Ralph de Neville, 2^nd Lord Neville.

Circa 1315

Edward II grants to the Lords of the Manor of Aynho the right to hold a weekly  market and a four-day fair at Michaelmas.

John FitzRobert dies.

Hawisia Clavering dies and the manor of Aynho passes to Ralph de Neville who, in turn, passes it to Sir John d’Arundel, also known as John Fitzalan, 1^st Baron Maltravers.

The Black Death.