Ireland; Co. Mayo; Westport: Westport House; built starting in 1730 by German born famous architect Richard Cassels (1690 - 1751) and later on James Wyatt (1746 - 1813).Richard Cassels; also known as Richard Castle; was born in German city of Kassel; but was no German. he was of French origin; descendent from the french-netherlandish (dutch) Du Ry family; famous for their architects. A cousin; Simon Du Ry; designed famous Schloss Wilhelmsh鰄e; in Kassel. Richard Cassels startet his work at Westport House; in 1730; for the Browne family. The Browne family hold th title of Marquess of Sligo; since 1800. Cassels built the east section of the house facing the town. Later on; the house was extended to a two storey building by James Wyatt. Cassels worked in classic Palladian style; Wyatt was perfect in neoclassical and neo-gothic architecture. Colonel John Browne (1638-1711); who had the original Westport House built; married The Hon. Maud Bourke; daughter of The 3rd Viscount Mayo and the great-great-granddaughter of Gr醝nne N?Mh醝lle (Gr醝nne O'Malley); the most prominent pirate in Irish history. He was a Roman Catholic who fought on the Jacobite side in the War of the Two Kings. His descendants converted to the Church of Ireland. After the death of The 11th Marquess of Sligo in 2014; the house passed to his five daughters. Today; Westport House is owned by the Hughes family. Until January 2017; it was the ancestral seat of the Browne family; whose head was the Marquess of Sligo. The title and the house were separated 2014. Marquess of Sligo is a title in the Peerage of Ireland. It was created in 1800 for John Browne; 3rd Earl of Altamont. On the sight of Westport House; there was most probably a former castle of the O`Malley clan. Since 1806; the Browne family had a permanent seat in the House of Lords.