In 1327 June 23, Johannes de Patshull (John Pateshull) was granted, by Edward III, (In year 1 of his reign) a Royal licence to crenellate Bletnesho (Bletsoe)

"Licence for John de Pateshull to crenellate his dwelling-house (mansum) of Bletnesho, co. Bedford."

Granted at York, by privy seal.

Original source is

• Calendar of Patent Rolls (1327-30) p130

(In fact, the original source given is usually a transcription/translation of what are precious medieval documents not readily availably. It should be noted that these transcription/translations often date to the nineteenth or early twentieth centuries and that unwitting bias of transcribers may affect the translation. Care should also be taken to avoid giving modern meaning to the medieval use of certain stock words and terms. Licentia is best translated as 'freedom to' not 'permission'.)

Significant later source are;

• King, D.J.C., 1983, Castellarium Anglicanum Vol1 (London: Kraus) Vol1 p9n6
  Page, Wm (ed), 1912, 'Parishes: Bletsoe', VCH Bedford: Vol3 p40-3
  Turner, T.H. and Parker, J.H., 1859, Some account of Domestic Architecture in England (Oxford) Vol3 pt2 p408

Pattishall , Sir Simon of (b. in or before 1219, d. 1274)

By 1316 John Pattishall was in service with the earl of Hereford in Wales and later the same year, and subsequently, was summoned for military service against the Scots, and fought on the king's side at the battle of Boroughbridge in 1322. He received individual summonses to attend meetings of the king's council in 1324, 1335, 1338, and 1342, but never received an individual summons to parliament. As a prominent member of the local gentry he also received numerous judicial and other commissions to act in the counties of Bedfordshire, Buckinghamshire, and Northamptonshire, and in June 1327 he received a licence to crenellate his house in Bletsoe. (Brand)

Biographical source include;

• Paul Brand, ‘Pattishall , Sir Simon of (b. in or before 1219, d. 1274)’, Oxford Dictionary of National Biography, Oxford University Press, 2004 [http://www.oxforddnb.com/view/article/21545, accessed 25 Nov 2007]
  

More details about licences to crenellate can be found here.

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