Overview
Robert Rundell Guinness (12 December 1789 -7 March 1857) was an Irish banker, most famous for co-founding the Guinness Mahon bank in 1836.
The grandson of a Dublin goldbeater Samuel Guinness (1727-1795), he is the first of the "banking line" in the Guinness family.
Family
Robert was the son of Richard Guinness (1755-1829), a Dublin barrister and judge, and his wife Mary Darley, descended from a well-known Dublin house-building family. He was a grand-nephew of the brewer Arthur Guinness, and the elder brother of Richard Samuel Guinness MP.
He married firstly Mary Anne Seymour in November 1822, who died in 1837 at their home in Stillorgan, County Dublin. They had three children:
Mary Catherine (1823-1905), who married Sir Samuel Ferguson
Richard Seymour (1826-1915), a banker with Guinness Mahon from 1841
Henry (1829–93), a banker with Guinness Mahon from 1851
From Wikipedia (CC BY-SA 4.0).