In 1807 members of the regiment were lost in the sinking of the "Prince of Wales". The regiment embarked for Portugal in spring 1808 for service in the Peninsular War. It saw action at the Battle of Vimeiro in August 1808, the Battle of Talavera in July 1809 and the Battle of Bussaco in September 1810. It also fought at the First Siege of Badajoz In February 1811 and the Battle of Albuera in May 1811 before sailing for home in October 1811. The regiment was dispatched to Upper Canada in May 1814 and took part in the Siege of Fort Erie in August 1814 during the War of 1812 before arriving back home in July 1815. It was renumbered as the 96th (Queen's Own Germans) Regiment of Foot in February 1816 and was disbanded at Limerick in Ireland in December 1818.