http://www.wikitree.com/wiki/Gruffydd-80http://www.wikitree.com/photo.php/7/7a/Llywelyn-29.jpg This Pedigree is from the above link.
This pedigree shows Lowrie married Griffith ap Einion.
Was living in 1416
http://www.robertsewell.ca/puleston.html Puleston and Horne
Robert Puleston of Emral, who married Lowry, a sister of Owain Glyn Dwr (Owen Glendower), and a daughter of Gruffudd Fychan II (Griffith Vychan), Lord of Glyndwrdwy. Robert Puleston's estates were forfeited due to his support of his brother-in-law Owain Glyn Dwr during the Revolt that began in September 1440, but subsequently restored. Robert and Lowry had the following children:
John Puleston of Emral, who died in 1444. His will is dated February 20, 1443. He married Angharad Hanmer, a daughter of Griffith Hanmer of Flintshire. Jordan and Angharad had a son:
Roger Puleston, Esq. of Emral, living temp. Henry VI., and Edward IV., who was deputy in 1460, of Jasper Tudor, Earl of Pembroke, Captain of Denbigh Castle; and who m. Janet, dau. of Thomas Bulkeley, Esq. of Eaton, co. Chester, son and heir of Sir William Bulkeley, Knt., by Margaret, his wife, dau. of Sir Richard Molyneux. For the continuation of this line, please click on Puleston Lineage which is copied from Burke’s Peerage, 1898, Page 1145.
Madoc Puleston (died after 1426) who married Anghared, a daughter of David Ap Gronwy of Burton.
Elin Puleston who married Gronwy Ap Ieuan of Einion
Agnes Puleston who married first Tydyr Vychan and second Meredith Ap Kynfrig
Murvydd Puleston
Anghared Puleston (died in 1448) who married Edward Ap David of Trevor
