His father was the Baron Ignác Eötvös de Vásárosnamény (1786–1851), lord of the bedchamber, vice-chancellor of the Kingdom of Hungary, and his mother was the Baroness Anne von der Lilien (1786–1858).

He received an excellent education and also spent many years in western Europe, assimilating the new ideas both literary and political, and making the acquaintance of the leaders of the Romantic school.

Eötvös disseminated his progressive ideas in the columns of the Pesti Hírlap, as well as in his novels The Village Notary (1844–1846) – one of the classics of Hungarian literature – Hungary in 1514, and the comedy Long live Equality!.

Yet he continued to serve the cause in his influential writings, for example Influence of the Ruling Ideas of the 19th century on the State (Pest, 1851–1854, German editions at Vienna and Leipzig the same year).

When he published The Carthusians, written on the occasion of the floods at Pest in 1838, the Hungarian novel was still in its infancy, being chiefly represented by the historico-epics of Miklós Jósika.

The famous Village Notary came still nearer to actual life, while Hungary in 1514 is especially interesting because it attributes the great national catastrophe of the Battle of Mohács to the blind selfishness of the Hungarian nobility and the intense sufferings of the people under them.