Sir William Calthorpe was a Norfolk sheep farmer. He became the heir to his grandfather's lands in 1431, and his children inherited the
manor at
Ingham, in north-east Norfolk. He is recorded on 28 June 1443, when he released one of his
villeins, from
serfdom and set him free from all future services. He was a
Member of Parliament, representing Norfolk from 1445 to 1446. He was sworn to the peace in Norfolk in 1434; the following year he was recorded as paying 10
marks rent for the farm of the church of
Sculthorpe, Norfolk. He was among those thanked by the
Council in connection with dealing with riots that took place in Norfolk in 1443. In 1448 he produced a
charter of
Henry III of England that granted free warren in Calthorpe to his ancestor William de Calthorpe. He became
locum tenens and
Commissary-General to the late most noble and potent William,
Duke of Norfolk,
Earl of Pembroke, and
Lord Great Chamberlain of England,
Ireland and
Aquitaine, during the minority of the Duke's son and heir, Henry,
Earl of Exeter. In 1469, Sir William described himself as Sir William Calthorp of Ludham, a manor which he owned, as well as that of Burnham Thorpe. In 1479, he was Steward of the household of the Duke of Norfolk. A
Lancastrian, his arrest was ordered on 20 May 1450; he was pardoned in 1458. Calthorpe was made a Knight of the Bath in the
Tower of London, by King
Edward IV, on the Coronation of his Queen,
Elizabeth Woodville,
Ascension Day. Calthorpe made Presentations to the Rectory of
Beeston, Norfolk in 1460, 1481, 1492, and the Rectory of Hempstede in 1479 and 1485. He is on record as
High Sheriff of Norfolk and Suffolk in 1442, 1458 and 1464 and 1476. He served as a
Justice of the peace in Norfolk from 16 March to 24 November 1460; 4 July 1461 until becoming sheriff in 1463, 24 July 1466 until becoming sheriff in 1475, and from 28 June 1483 to 7 December 1485.In June 1469, he was "sworn one of my lord of Gloucester's men", but the following year was recorded as being a supporter of the
Readeption of Henry VI. He was subsequently pardoned by the
Yorkists on 8 February 1471, when he was given as being as "of Ingham, alias of Ludham, late sheriff". Similar documents name him on 12 December 1471 as being "of Norwich senior", and again in February 1473. He was a supporter of
Richard III. In the church of
St. Martin at Palace, Norwich, is a tablet showing that in 1550 Lady Calthorp (Sir William's daughter-in-law) gave a silver cup and a velvet carpet to that church. It appears that the Calthorpes had their townhouse in this parish for many years, and Sir William Calthorp certainly lived there in 1492, and probably long before then, for it is recorded that in 1447 the Executors of Joan Lady Bardolph, sold the old seat of the Erpinghams, in St. Martin's at the Palace, to William Calthorp, Esq., and the receivership of the
Erpingham manor was vested in Sir Philip Calthorp (d. 1535 – grandson of Sir William) and his wife Joan (née Blennerhasset), in 1487. == Marriage and issue ==