Hervey de Keith
Hervey de Keith (died c. 1185) was a Scoto-Norman adventurer and nobleman and first recorded Marischal of Scotland. Life
Keith took his name from the Barony of Keith, in East Lothian, which he held the north eastern part; the south western part was held by Simon Fraser. The two sections of the estate were known as Keith Harvey and Keith Symmars respectively. In 1160 Fraser made over the Church at Keith and its revenues to the monks of Kelso Abbey, compelling Hervey de Keith to build a new church at Keith Harvey paying an annual tribute to Kelso. Latterly Keith had legal wrangles with the Abbey of Kelso as to the level of payment that he should make to them. These troubles were smoothed out under the auspices of Jocelin, Bishop of Glasgow and Osbert, Prior of Paisley, who decreed that he must pay an annual sum of twenty shillings. In this document he is described as "Marescallus Regis Scocie". Keith was Marischal under Kings Malcolm the Maiden and William the Lyon, and was witness to many charters under them. Hervey de Keith died circa 1185. Marriage and issue 
It has been suggested that Keith married Margaret, daughter to William I, Lord of Douglas though this is doubtful. Keith had a son: 
 Malcolm de Keith, who witnessed many charters between 1178 and 1220, but did not assume the role of Marischal. Keith was succeeded in his role as Marischal by his grandsons: 
 Philip de Keith
 David de Keith

He gave origin to Clan Keith. References

Notes

Sources
Balfour Paul, Sir James Scots Peerage IX vols. Edinburgh 1905. Nisbet, Alexander, A system of Heraldry: &c.II vols. Edinburgh 1816. Liber S. Marie de Calchou : registrum cartarum abbacie tironensis de Kelso, 1113-1567,II vols. Bannatyne Club, Edinburgh 1846. 12th-century births
1180s deaths
Year of birth unknown
Year of death uncertain
Norman warriors
Scoto-Normans