Nielsen Hayden genealogy
Ancestors of Adam de Mirfield
Abt 1360 - Aft 1428 (~ 68 years) ┌── Adam de Pontefract (Abt 1260 - Aft Aug 1307) =>
┌── John de Pontefract (Abt 1300 - 1346)
┌── William de Mirfield (Abt 1325 - Aft 4 Mar 1380)(m. Bef 1354)
│ └── Avice de Dighton
│
Adam de Mirfield (Abt 1360 of Howley, Yorkshire, England - Aft Apr 1428)
│
│ ┌── William de Beaumont ( - Abt 1323) =>
│ ┌── Robert de Beaumont (of Crosland, Yorkshire, England - Aft 1328)(m. Aft 8 Jul 1310)
│ │
└── Agnes de Beaumont (m. Bef 1354)
│
│ ┌── John de Quernby
└── Agnes de Quernby ( - Aft 1345)(m. Aft 8 Jul 1310)