Countess Anna of Stolberg-Wernigerode (28 January 1504 – 4 March 1574) was a German noblewoman who reigned as Princess-Abbess of Quedlinburg from 1516 until her death.

However, George died in 1539 and was succeeded by his Protestant brother, Henry IV, which left Anna II free to publicly express her Lutheran faith and introduce the Reformation to Quedlinburg.

[2] Anna, who governed over a sizeable territory, established Lutheranism in all the houses under her jurisdiction; the choir service in the Abbey Church was abandoned and the monastic offices reduced to four, although the ancient, official titles remained.

She turned a Franciscan monastery into a school for both male and female children, although the order raised objections to her decision.

Despite her clearly Protestant religious views, both the Pope and the Holy Roman Emperor gave her permission to choose a coadjutor abbess when she expressed a need for help in her later years.