Ailsius de Osbaldeston

Alisius is also referred to by chroniclers as Eilfi and Ailsi.
Extant sources of merit validate neither a fixed nor a well-reasoned
approximation for this person-profile's birth year.

• Stirnet quotes from the Victoria County History website as follows: "Osbaldeston and the adjoining vill of Balderston represent one of the twenty-eight Domesday manors held in 1066 by a freeman who was probably the ancestor of Ailsi son of Hugh". Hugh de Osbaldeston of Osbaldeston, Lancashire. Ailsi de Osbaldeston (d. before 1217).” (Note: The unnamed relation in the passage, of course, was not Hugo. In 1066, he was neither alive nor holding “28 Domesday manors”. The unnamed ancestor may’ve been Hugo’s grandfather.)
• The Historic Society of Lancashire & Cheshire, Vol 87. (1935). "Some notes on the family of Osbaldeston",
• McNulty, Joseph. (2013). The Chartulary of the Cistercian Abbey of St Mary of Sallay in Craven, Vol. 87, p. 137. ISBN: 9781108058797.
• Baines, Edward. (1836). History of the County Palatine and Duchy of Lancaster, Vol. III, pp. 343-344.
• Abram, William Alexander. A History of Blackburn: Town and Parish. (2014). p. 493.
• Baines, Edward, William R. Whatton, Brooke Herford & James Croston. (1891). The History of the County Palatine and Duchy of Lancaster, Vol. 4, p. 56.5, pedigree.
• Alexander Abram, William. (1877). Parish of Blackburn, County of Lancaster: A History of Blackburn, Town and Parish, p. 600.
• Mannex. P. (1855). History, Topography, and Directory of Mid-Lancashire, with an Essay on Geology, p. 293.
• Chetham Society. Remains Historical and Literary Connected with the Palatine Counties of Lancaster and Chester, Vol. 51.
• Thomas Tyldesley, Atticus. (1873). The Tyldesley Diary: Personal Records of Thomas Tyldesley, p. 186.
• Alexander Abram, William. (1877). Parish of Blackburn, County of Lancaster: A History of Blackburn, Town and Parish pp. 418-19, 600.