[5] Kovarce dates back at least to the late 13th century, in the Hungarian Kingdom, when it was the property of the Ludanick family.

[7] A daughter of the sugar refinery's founder, Anton Wels, was the maternal grandmother of Audrey Hepburn.

From 1906 the castle was rented to American businessman (and in 1912 Titanic survivor) Thomas Cardeza, a grandson of the founder of Fidelity Trust Company in Philadelphia, and his French-born wife Mary (née Racine and descendant of Jean Racine), both of whom had lived between 1903 and 1906 in nearby Nitrianska Streda.

In late 1926, Count Henrik Apponyi sold it to the Czechoslovak Government which transformed it into an institution for war invalids.

Saint Anne Church, on a hill dominating the village, was built in the 19th century in the neo-Gothic style.