It became extinct upon the death of his daughter, Frances Garnet Wolseley, in 1936.

[3] The family seat was Mount Wolseley in County Carlow.

[6][7] Wolseley rose to the position of Field Marshal, the highest executive position in the British Army, then Commander-in-Chief of the Forces for a period of six years from 1895.

On Lord Wolseley's death the barony became extinct and he was succeeded in the viscountcy, according to the special remainder, by his daughter, Frances, author of Gardens – Their Form and Design (1919).

Viscountess Wolseley never married and upon her death in 1936 the viscountcy became extinct.