Son of John Hayes of Hayesville, Wicklow, Samuel Hayes is born.
Samuel Hayes inherits Hayesville and renames it ‘Avondale’.
Samuel Hayes is appointed Sheriff of Wicklow.
Avondale House is designed by renowned architect James Wyatt and is built by Samuel Hayes. Samuel Hayes as an amateur architect has input into the house design.
Samuel Hayes writes Ireland’s first book devoted to trees, A Practical Treatise on Planting and the Management of Woods and Coppices.
When Samuel Hayes dies, he bequeaths Avondale Estate to his cousin Sir John Parnell stipulating it should pass to a younger son.
Sir John Parnell bequeaths Avondale Estate to his youngest son, William.
William leaves Avondale Estate to his much-travelled son John Henry Parnell.
John marries Delia Tudor Stewart at Grace Church, New York on 31st May 1835. They return to live at Avondale Estate where 9 of their 11 children are born.
Charles Stewart Parnell is born, 4th son.
Charles and his brothers and sisters pass their childhood at Avondale.
Delia Parnell leaves Avondale to live in Paris with some of her children.
John Henry Parnell dies suddenly; the Parnell children are made Wards of Court.
Charles Stewart Parnell attends Magdalene College Cambridge but does not complete his studies.
Parnell comes of age and assumes ownership of Avondale in 1867.
First visit to America, Parnell visits his brother in Alabama seeking business opportunities in mining and railroad investment.
Parnell becomes High Sheriff of Wicklow, active in the local gentry.
Parnell & Katharine O’Shea meet.
Captain O’Shea divorces from Katharine O’Shea.
Parnell and Katharine marry at Steyning Registry Office near Brighton.
Charles Stewart Parnell dies of pneumonia in Brighton 06.10.1891, age 45. On October 11, 1891 he is buried in Glasnevin Cemetery.
John Howard Parnell, brother of Charles Stewart Parnell sells the heavily encumbered estate.
Avondale Estate is purchased by the State.
The first forestry training school is established at Avondale in 1904 by the Department of Agriculture and Technical Instruction under the supervision of A.C. Forbes, one of Ireland’s great forestry pioneers.
The Great Tree Experiment is begun to establish which trees were best suited to Irish forestry. This involved the planting of experimental plots of trees (54 conifer & 45 broadleaf species), flanking the magnificent Great Ride.
The forestry school at Avondale closes.
The forestry school reopens at Avondale & remains at this location until the late 1970s.
Coillte Teoranta is formed as a semi-state body.
Avondale House opens to the public for guided tours.
Work begins on the Treetop Walk and Viewing Tower and the new visitor experience of Beyond the Trees Avondale.