1. | Mary MAINWARING was born in 1420 in Middlewich, Cheshire, England; died in 1464 in Clayton Hall, Yorkshire, England. Mary married John Thewell DECLAYTON. John (son of Thomas CLAYTON and Dorothy THELWELL) was born in 1419 in Clayton Hall, Yorkshire, , England; died in 1460 in Clayton Manor, Lancashire, , England. [Group Sheet] Children:
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