The Campbells arrived in Argyll as part of a royal expedition in c.1220. They settled on Lochaweside where they were placed in charge of the King's lands in the area.

From Bruce's time, the family headquarters had been the great castle at Innischonnell on Loch Awe, and remained so until the 1400's when Sir Duncan Campbell (great grandson of Sir Colin) moved to to Inveraray. He was created Lord Campbell and thereafter a steady string of titles were awarded to the family. His grandson was created Earl of Argyll in 1457.

Sir Gillespic Campbell of Menstrie died circa 1280.1

    Sir Gillespic Campbell of Menstrie lived at Menstrie, Clackmannanshire, Scotland.1

FamilySearch []https://www.familysearch.org/tree/person/details/LTBC-QTH?1=1&spous...

Sir Gillespic Campbell, 1st of Menstrie

Son and heir of Duglad Campbell.

Born: c. 1199

Married: Wife unnamed, possibly a dau. of Sinclair of Roslin (a.k.a. St. Clair of Roslin)

Children:

1. Sir Colin Mor Campbell, later Chief of Clan Campbell
2. Beatrice Campbell
3. Gillespic Campbell

Created: 1263 1st Lord of Menstrie

Died: c. 1280

Tenure: 1263 - 1280

Other Titles: 9th Knight of Lochow

Preceded by: Dugald Campbell (b. 1161)

Succeeded by: eldest son, Sir Colin Campbell, 2nd of Menstrie, 1st Lord of Lochow

Note: Gillespic's first historical appearance dates to 1263, when he appeared in a charter of King Alexander III of Scotland, being named as "Gilascoppe Cambell". He was granted the estates of Menstrie and Sauchie in Clackmannanshire.

https://www.ccsna.org/sir-gillespic-campbell-1st-menstrie