Earl of Mornington used as a courtesy title by the heir apparent to the Marquess of Douro, himself the heir apparent to the Duke of Wellington. As of 2015 the title is held by courtesy by Arthur Wellesley, Earl of Mornington, son of Arthur Wellesley, Marquess of Douro and grandson of Charles Wellesley, 9th Duke of Wellington. The Wesley or Wellesley family descended from Sir Richard de Wellesley (15th century). His grandson Sir William Wellesley (died 1602) lived at Dangan Castle, County Meath. The family estates passed down the male lines. One of Wellesley's daughters, Alison, married John Cusack. Their son Sir Thomas
Arthur Bigsworth Arthur Bigsworth Air Commodore Arthur Wellesley Bigsworth & Bar, AFC (27 March 1885 – 24 February 1961) was a pioneer aviator who had a distinguished military career in the service of the British armed forces. Arthur Wellesley Bigsworth was born on 27 March 1885, the son of Arthur Wellesley Bigsworth Sr and Kate Box. Bigsworth received training as a Mercantile Marine officer, later joining the Royal Naval Reserve as a sub-lieutenant, being promoted to lieutenant on 19 January 1913. He attended the first course at the Central Flying School, gaining his Aviator's Certificate no. 396 on 21 January 1913. He