Alwyn was born in 1130 in Lennox, Scotland.1 Alwyn's father was Muredach of Levanach and his mother was Mor. His paternal grandparents were Maldouen of Levanach and <Unknown>; his maternal grandparents were Alwyn Mor and <Unknown>. He had a brother named Eth. He died at the age of 69 in 1199.2
General Notes
Notes from http://www.clangalbraith.org/GalbraithsOfTheLennox/lennox.htm GALBRAITHS OF THE LENNOX PRIVATELY PRINTED Compiled by Col. T. L. Galloway of Auchendrane in 1944
.....This Alwyn, the first Earl, is a very shadowy figure, and the date when he received the Earldom is uncertain. It is known that David of Huntingdon, brother of King William (the Lion), held the Earldom for some time about the year 1166, for at this date he granted the Church of Campsie to the Monks of Kelso. Earl Akvyn II, at a later date, granted Campsie to the Church of Glasgow, and these conflicting claims were the subject of an amicable settlement in 1221 (see Registrum Episc. Glas. p. 100). But whether Alwyn I held the Earldom before David of Huntingdon is not known. It is clear, however, that Alwyn, 2nd Earl, son and heir of Alwyn, 1st Earl, was in possession before 1199, as will be shown later from a charter confirming certain lands to the Church of Kilpatrick.