Question: Merrion Hotel the reputed birthplace of a soldier who defeated Napoleon at what battle?

Context paragraphs:
Merrion Street: Merrion Street (Irish: "Sráid Mhuirfean" ) is a major Georgian street on the southside of Dublin, Ireland which runs along one side of Merrion Square.  The garden entrance of Leinster House is located on the street, as is Irish Government Buildings, formerly the Royal College of Science for Ireland.  Some reports suggest that Arthur Wellesley, 1st Duke of Wellington was born in his family's Mornington House on the street.  The house is now a hotel.

Peninsular War: The Peninsular War (1807–1814) was a military conflict between Napoleon's empire and the allied powers of Spain, Britain and Portugal, for control of the Iberian Peninsula during the Napoleonic Wars.  The war started when French and Spanish armies invaded and occupied Portugal in 1807, and escalated in 1808 when France turned on Spain, previously its ally.  The war on the peninsula lasted until the Sixth Coalition defeated Napoleon in 1814, and is regarded as one of the first wars of national liberation, significant for the emergence of large-scale guerrilla warfare.

Merrion Hotel: Merrion Hotel is a hotel in Dublin, Ireland, which comprises a block of four terraced houses on Upper Merrion Street, built in the 1760s by Charles Monck, 1st Viscount Monck, for wealthy Irish merchants and nobility.  He lived in No. 22, which became known as Monck House.  The first of these Georgian houses (No. 24), Mornington House, is the reputed birthplace of Arthur Wellesley, 1st Duke of Wellington.  It is half owned by Lochlann Quinn.

Arthur Wellesley, 1st Duke of Wellington: Field Marshal Arthur Wellesley, 1st Duke of Wellington, {'1': ", '2': ", '3': ", '4': "} (1 May 1769 – 14 September 1852) was an Anglo-Irish soldier and statesman who was one of the leading military and political figures of 19th-century Britain.  His defeat of Napoleon at the Battle of Waterloo in 1815 put him in the first rank of Britain's military heroes.

Siege of Ancona: Siege of Ancona was a battle in the Neapolitan War.  It took place beginning on May 5, 1815 and persisted until May 30, 1815.  The battle took place mere days after the Battle of Tolentino on May 3, 1815.  The siege of Ancona was one of the last battles in Italy during the Neapolitan War.  The city of Ancona was the last major Italian city to surrender.  It was fought between Napoleon’s forces in Ancona, Italy and the Anglo-Austrian alliance during the One Hundred Days’ campaign.  The Anglo-Austrian alliance eventually defeated Napoleon’s forces, thus helping expel the French from Eastern Italy.  It also contributed to the elimination of the Buonaparte monarchy proposed by Murat and led to the establishment of the Papal state.

Huguenot Cemetery, Dublin: The Huguenot Cemetery (Irish: "Reilig na nÚgóineach" , French: "Cimetière huguenot de Dublin" ) is a small cemetery dating from 1693 located near St. Stephen's Green, Dublin, Ireland, beside the Shelbourne Hotel.  Although often described as being on the green, it is actually on the north side of Merrion Row, a small street linking St. Stephen's Green with Upper Merrion Street and Ely Place.

Martin Naughton (businessman): Martin Naughton, KBE (b. 1940 in Dundalk, County Louth), an Irish entrepreneur, founded Glen Electric in August 1973 with a small manufacturing facility employing just ten people in Newry, County Down, Northern Ireland.  In 1977, Dimplex, the leading brand in the UK electrical heating market was acquired by Glen Electrics forming the Glen Dimplex Group.  The company set out acquiring further businesses across the UK with Morphy Richards, the market leader in small domestic appliances in 1985 followed by Blanella, a manufacturer of electric blankets and Burco Dean Appliances, a manufacturer of products for the catering industry, all in the same year.  The 1990s saw the company forge its powers of acquisition and strategic business thinking to acquire further businesses across Europe and beyond.  An engineer by profession, Dr. Naughton has overseen his company to become the world's largest manufacturer in domestic heating appliances.  His company has plants in the Republic of Ireland, the United Kingdom and North America.  His business has more than 8000 staff and 22 manufacturing facilities with annual sales of around $1.6 billion.  Naughton's stake in the company is worth around £273 million with other investments including an art collection, property in Dublin and shares in the Merrion Hotel Group and the Sunday Tribune newspaper.  He was awarded with an honorary degree (Doctor of Science) for his services to promote business in Northern Ireland.

Merrion Hall: The Merrion Hall is a former Plymouth Brethren church built by Alfred Gresham Jones and completed in 1863 that was located near Merrion Square in Dublin, Ireland.  It has been reconstructed and renovated and is now a hotel but the facade has been retained.

Cape Trafalgar: Cape Trafalgar ( ; Spanish: "Cabo Trafalgar" ] ) is a headland in the Province of Cádiz in the south-west of Spain.  The 1805 naval Battle of Trafalgar, in which the Royal Navy decisively defeated Napoleon's combined Spanish and French fleet, took place off the cape.

Merrion Cemetery, Bellevue: Merrion Cemetery, Bellevue (Irish: "Reilig Mhuirfean" ) is a cemetery located off the Merrion Road in Dublin, Ireland.  It is located adjacent to the "Tara Towers" hotel near Booterstown.  The cemetery was in use from 1300 to 1866.  Since 1978 it has been used as a public park under the care of Dublin City Council

Supporting paragraphs: Merrion Hotel Arthur Wellesley, 1st Duke of Wellington
Answer: Battle of Waterloo