William De Mainwaring
William was born in 1290 in Over Peover, Carincham, Cheshire, England.¹   He died at the age of 49 in 1339 in Over Peover, Carincham, Cheshire, England.¹ 

 *mary Davenport
*mary was born in 1287 in Moreton, Cheshire, England.¹   She died at the age of 74 in 1361 in Holland, Lancashire, England.¹ 

 William Mainwaring
William was born in 1316 in Over By, Middlewich, Cheshire, England.¹   He died at the age of 48 in 1364 in Overby, Middlewich, Cheshire, England.¹