France remaining in peace, the Jacobites find a new ally in Spain's Minister to the King, Cardinal Giulio Alberoni.

An invasion force sets sail in 1719 with two frigates to land in Scotland to raise the clans, and 27 ships carrying 5,000 soldiers to England, but storms disperse the latter before they can land.

When the two Spanish frigates successfully land a party of Jacobites led by Lord Tullibardine and Earl Marischal with 300 Spanish soldiers at Loch Duich they hold Eilean Donan Castle, but meet only lukewarm support from a few clans and at the Battle of Glen Shiel.

Government forces compel the surrender of the Spanish troops.