AD
Alan de Allerston
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Research notes
✓ Alan son and heir of Torphin de Allerston; joined his father's grants to Rievaulx; predeceased his father, leaving his daughter Helen as heir by 1189. Source: VCH Yorks North Riding vol. II (1923), pp.421-424, 'Allerston' (british-history.ac.uk), citing the records named. [DIRECT ANCESTOR OF THE COMPILER: flag added 15 Oct 2026 by walking the tree from Aynsley, so that this marker is reliable and can be searched.]