The Stuarts were often visited by Edward Gibbon the author of the classic “Decline and fall of the Roman Empire"

According to Hampshire County Council it was classed as a village in 1316 and from the end of the 14th century belonged to the Duchy of Lancaster. The Village street is a minor metalled road that ran from Jeffries Farm to Hartley Pond and raised earth platforms suggest there were about ten cottages here.

"............Maud, who went on to marry the king's nephew, Henry of Lancaster. Dugdale reports that, following Chaworth's death in 1286-7, Isabel had four manors in Wiltshire, and two in Berkshire, assigned to her ‘until her dowry should be set forth’ along with the livery of Chedworth in Gloucestershire, and the Hampshire manor of Hartley Mauditt, which had been granted to her and her husband in frankmarriage by her father. Shortly afterwards, she married the elder Despenser, without the king's licence, for which Hugh Despenser was fined 2,000 marks......."
Chapter 1 : The Beauchamp family to 1369  http://users.powernet.co.uk/barfield/chap1.htm

But why it is called a 'lost village' I do not know and hope to find out..

Die Jovis, 16 Decembris, 1647.
PRAYERS.
Delinquents.
MR. John Ashe reports divers Fines and Compositions from the Committee at Goldsmiths Hall: Whereupon it is resolved, as followeth; viz. From: 'House of Commons Journal Volume 5: 16 December 1647', Journal of the House of Commons: volume 5: 1646-1648 (1802), pp. 386-88.

Resolved, &c. That this House doth accept of the Sum of Fourteen hundred Pounds, for a Fine, for the Delinquency of Nicholas Stewart, of Hartley Mauditt, in the County of Southampton, Esquire: His Offence, That he deserted his own Habitation, and went into and resided in the Enemy's Garisons: He rendered in November 1645: His Estate, in Fee, per Annum, One hundred and Fortyeight Pounds in Fee Tail, per Annum, Five hundred and Sixty-five Pounds; after Three Lives, per Annum, One hundred and Forty Pounds: Out of which Allowance being made of One hundred Pounds for One thousand Three hundred and Thirty-three Pounds, charged upon his Land for Portions to younger Children, yet unpaid; the Fine, at a Tenth, remains One thousand Four hundred Pounds.
An Ordinance for granting a Pardon to Nicholas Stewart, of Hartley Mauditt in the County of Southampton, Esquire, for his Delinquency, and for taking off the Sequestration of his Estate, was this Day read; and, upon the Question, passed; and ordered to be sent to the Lords for their Concurrence. From: 'House of Commons Journal Volume 5: 16 December 1647', Journal of the House of Commons: volume 5: 1646-1648 (1802), pp. 386-88. 
http://www.british-history.ac.uk/report.asp?compid=25252&strquery=hartley%20mauditt.

Dateline 1875

HARTLEY MAUDITT  is a small village and parish, 2¼ miles south-east from Alton railway station, 52 from London, and 10 south-west from Farnham, in the .Northern division of the county, Alton hundred, union, petty sessional division and county court district, and in the diocese and archdeaconry of Winchester, and rural deanery of Alton western division. 

The church at Harley Mauditt

The church (name unknown) consists of a chancel, nave, and porch on the south side: the chancel arch is remarkable, being among those few specimens of the horse-shoe form, and the font is of considerable antiquity; the church was almost entirely rebuilt in 1854, at an expense of £700, and a bell turret was added: the windows are of fine stained glass; the eastern represents The Crucifixion and Ascension, and the two western windows represent The Agony in the Garden and The Resurrection : in the chancel are some very ancient monuments to the Stuart family. The register dates from 1672.

 The living is a rectory, value £256, with residence, in the gift of Mrs. Plummer, and held by the Rev. George Jones, M.A., of Emmanuel College, Cambridge. Here is a National school for boys and girls. 

The Hon. John Thomas Dutton is lord of the manor and principal landowner.

 The population in 1871 was 128.