Source Information Pedigrees of Montgomeryshire Families, 1711-1712 [database on-line]. Provo, UT, USA: Operations Inc, 2004.
Original data: Rhydderch, John. Pedigrees of Montgomeryshire Families, Selected about the Year 1711-12 from Lewis Dwnn's original visitation, "The Heraldic Visitations of Wales.". London, England: Whiting, 1888.

About Pedigrees of Montgomeryshire Families, 1711-1712

This database contains genealogies of some of the citizens of the county of Montgomery, Wales, that were selected about the year 1711-12 from Lewis Dwnn's original visitation. Heralds (those in charge of controlling the use of coats of arms under the direction of the Crown) conducted visitations to record the use of arms. Part of this recording included recording the pedigrees of the families using coats of arms. Pedigrees were recorded because families had to prove their right to bear the arms by showing their connections back to the original bearers. Because coats of arms were passed down through the generations, armory, or heraldry, has much genealogical value. These visitations, therefore, are significant because they provide several pedigree charts of Montgomeryshire families.

Taken from: Herber, Mark D. Ancestral Trails. Baltimore: Genealogical Publishing, 1998, 492-94.