John Hanmer of Upton

~ John of Upton (1277-1309), Constable of Caernarfon Castle, younger son of Sir Thomas de Macclesfield, who held Hanmer and first used the surname; m. Hawis ferch Einion, a descendant of the princes of southern Powys (Gruffudd ap Gwenwynwyn). Per the Hanmer family memorial (via Wikipedia) - ~. Sources: Dictionary of Welsh Biography (Dodd 1959), 'HANMER family'; Wikipedia 'David Hanmer' (citing DWB; Lord Hanmer, Memorial of the parish and family of Hanmer (1876) pp.23-27; R.R. Davies, The Revolt of Owain Glyn Dwr; J.Y.W. Lloyd, Powys Fadog ii). [DIRECT ANCESTOR OF THE COMPILER: flag added 22 Oct 2026 by walking the tree from Aynsley, so that this marker is reliable and can be searched.]