(5.) _Alexander de Berkeley_ succeeded his father, _Hugh_, and to the paternal estates added _Mathers_, in consequence of his marrying _Catharine_, sister to _William de Keith_, marischal of Scotland, as vouched by a charter, dated anno 1351, granted by _William de Keith_, “with consent (as the deed expresses it) of _Margaret_, my wife, to _Alexander de Berkeley_, and _Catharine_, my sister, his spouse, and the longest liver of them two, and the heirs male of their bodies, my lands of _Mathers, datum apud mansum capitale nostrum de Strathekin, die Martii inventione sanctæ crucis, anno 1351. Coram test. reverendo in Christo patr. Dom. Philippo, Dei gratia, Episc. Brechin. Dom. Willielmo eædem gratia Abbato de Aberbrothwick, David de Fleming, Willielmo de Liddel, militibus; Johan. de Seton, et aliis._” This charter is confirmed by King _David Bruce_, at Perth, the 18th of March, and twenty-first of his reign: _coram test. Roberto seneschallo, nepote nostro_, (the first king of Scotland of the Stewart race,) _Tho. Seneschal, comite de Angus, Tho. de Moravii panacri nostro Scotiæ, Roberto de Erskine, et Tho. de Falside, militibus._ The original charter from William de Keith, and the confirmation by David Bruce, are both in the possession of Mr. Barclay of Ury. (6.) _David de Berkeley_, 2d of _Mathers_, succeeded to his father _Alexander_; and he married the daughter of _John de Seton_, who witnessed the above charter from William de Keith. His son, (7.) _Alexander de Berkeley_, 3d of _Mathers_, was his successor, and he married _Helen_, the daughter of _Græme_ of Morphy. Their son, (8.) _David de Berkeley_, 4th of _Mathers_, succeeding, built the castle, called the _Keim_ of _Mathers_. He married _Elisabeth_, the daughter of _Strachan_ of _Thornton_, then an ancient and flourishing family in the _Mearns_. (9.) _Alexander Barclay_, 5th of _Mathers_, succeeded his father, _David de Berkeley_: and he was the first of the family who spelled the name as it is done at present. He married _Catharine Wishart_, the daughter of _Wishart_ of _Pitarrow_, and was succeeded by his son, (10.) _David Barclay_, 6th of _Mathers_, who married _Janet_, daughter of _Irvine_ of _Drum_, then one of the most considerable families in the shire of Aberdeen. His eldest son was (11.) _Alexander Barclay_, 7th of _Mathers_, who married _Marjory_, daughter of _James Auchinleck_ of _Glenbervie_. Auchinleck obtained the estate of Glenbervie, by marrying the daughter of _Melvil_, the proprietor, who was sheriff of the Mearns, and murdered by the barons. James Auchinleck had two daughters, but no male heir; and the elder was married to _Sir William Douglas_, the second son of the famous Earl of _Angus_, called _Bell the Cat_. By this marriage, the Douglasses got the estate of Glenbervie.