his death date appears as between October 1638 and 29 November 1638

http://en.wikipedia.org/wiki/Archibald_Campbell,_7th_Earl_of_Argyll

http://geneagraphie.com/getperson.php?personID=I36962&tree=1

http://thepeerage.com/p1668.htm

https://www.ccsna.org/earl-of-argyll

Archibald Campbell, 7th Earl of Argyll

Archibald Campbell, 7th Earl of Argyll, also called "Gillesbuig Grumach", was a Scottish peer, politician, and military leader.

Campbell was the son of Colin Campbell, 6th Earl of Argyll. In 1594 he commanded royal troops at the Battle of Glenlivet against Catholic Rebels, especially the Gordons of Huntly.

On 24 July 1592, he married his first wife - Lady Agnes Douglas, daughter of the Earl of Morton. Together they had at least five children, including a son and heir. His nickname, "Gillesbuig Grumach" is the Gaelic for Archibald the Grim. This presumably originates from his first wife and after her 14th-century ancestor, Archibald Douglas, 3rd Earl of Douglas.

After the death of his first wife about 1607 or 1608, he married Anne (Cornwallis), with whom he had at least four more children. In 1618 Archibald Campbell converted to Roman Catholicism, the religion of his new wife, from Presbyterianism.[1] By 1619, he had surrendered his estates to his son, Archibald Campbell.[2] He was made a Knight of the Golden Fleece in 1624. He had announced his new religion from the Netherlands and, as a consequence, he was declared a traitor in Edinburgh on 16 February 1619 and banned from his country. He was very supportive of his new religion even after he was allowed back in 1621. He was interested in military solutions in Ireland in 1622, but he was unable to raise an army.[2] He and his wife returned to Britain and lived at Drury Lane in London having abandoned everything apart from his title to his heir.[2] The 7th Earl of Argyll is buried at Kilmun Parish Church.

'References:'

Marshall, R. (22 September 2005). Cornwallis, Anne, countess of Argyll (d. 1635), Roman Catholic benefactor and supposed author. Oxford Dictionary of National Biography. Retrieved 8 Dec. 2017, from link

Callow, J. (23 September 2004). Campbell, Archibald, seventh earl of Argyll (1575/6–1638), magnate and politician. Oxford Dictionary of National Biography. Retrieved 8 Dec. 2017, from link Prebble, John, The Lion in the North: one thousand years of Scotland's history, London, 1971

From Wikipedia, the free encyclopedia: [https://en.wikipedia.org/wiki/Archibald_Campbell,_7th_Earl_of_Argyll]

Archibald Campbell, 7th Earl of Argyll was born in 1575. He was the son of Colin Campbell, 6th Earl of Argyll and Lady Anne Keith. He married, firstly, Lady Agnes Douglas, daughter of William Douglas, 6th Earl of Morton and Lady Agnes Leslie, on 24 July 1592. He married, secondly, Anne Cornwallis, daughter of Sir William Cornwallis and Lucy Neville, on 30 November 1610 at St. Botolph's, Bishopsgate, London, EnglandG. He died between 9 October 1638 and 29 November 1638 at London, England. His will was proven (by probate) on 29 November 1638.

He succeeded as the 8th Lord Campbell [S., 1445] on 10 September 1584. He succeeded as the 7th Earl of Argyll [S., 1457] on 10 September 1584. He succeeded as the 7th Lord Lorne [S., 1470] on 10 September 1584. He fought in the Battle of Glenlivat on 3 October 1594, where he was completely defeated by the Catholic Lords, Huntly and Erroll. He held the office of Justice-General [Scotland]. In 1617 after expelling the Macdonalds of Kintyre, he received a grant of the whole of that Lordship and the island of Jura. In 1618 he served under Philip III of Spain against Holland. In 1618 he became a Roman Catholic. On 16 February 1618/19 at Market Cross, Edinburgh, Midlothian, Scotland, he was declared a rebel and traitor. On 22 November 1621 his sentence was reversed. His last will was dated 9 October 1638. He has an extensive biographical entry in the Dictionary of National Biography