Maria Catherine Price was born on 15 December 1824 at Desart Court in County Kilkenny, Ireland.

[1][3] Rose La Touche became the object of the "crazed infatuation" of critic John Ruskin, though his offers of marriage were refused.

[3] Maria La Touche's literary career began with a poem she published at age twelve.

[3][5] She translated works by Pauline de la Ferronnays with her cousin, Maria Catherine Bishop.

[1][2] A selection of her correspondence was published in 1908 as The letters of a noble woman: Mrs. La Touche of Harristown, edited by Margaret Ferrier Young.