The burial slab of Donnchadh Mór Mac Allein Mhic Lachlainn. Better known in history as Donnchadh Mac Eain, or in English, Duncan McCain. He was active from the late 1460s until circa 1514. He was a son of Ailean Mac Eáin Riabhach. Ailean was given a charter to a large holding of land in Glassary in 1436 by his cousin and the overall Taoiseach of Clann Lachlainn, Eáin Mac Lachlainn. The exact nature of the kinship between Ailean and Eáin is not known, the term cousin had a very broad meaning in the Gaelic world in the fifteenth century. While the kinship connection is a mystery, there is no doubt of the clan affiliation. Ailean held his lands through Eáin Mac Lachlainn and his descendants continued this practice in both the sixteenth and seventeenth centuries.