Y gwahaniaeth rhwng diwygiadau o "Siryfion Meirionnydd yn y 19eg ganrif"

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==1820au<ref name="ReferenceA">Annals and Antiquities of the Counties and County Families of Wales: Containing a Record of All Ranks of the Gentry with Many Ancient Pedigrees and Memorials of Old and Extinct Families, Cyfrol 2 - Thomas Nicholas 1872 Tudalen 694 [https://books.google.co.uk/books?id=qjIwAAAAYAAJ&pg=PA694#v=onepage&q&f=false] adalwyd 11 Ionawr 20015</ref>==
[[Delwedd:John Mytton, after William Webb, May 1818, photogravure of the original miniature.jpg|bawd|''Mad Jack'' Mytton, Siryf 1821]]
*1820: Thomas Fitzhugh, Cwmheision
*1821: [[John Mytton]], Halston, [[Swydd Amwythig]].