Juliana, Countess of Stolberg-Wernigerode (15 February 1506 in Stolberg, Saxony-Anhalt – 18 June 1580) was the mother of William the Silent, [1] the leader of the successful Dutch Revolt against the Spanish in the 16th century.

After the death of her second husband in 1559 she remained living at Dillenburg castle, now belonging to her second son John, who died in 1580.

When William began his rebellion against Philip II of Spain she supported her son morally and financially.

A fictionalized account of her life is found in Ethel Herr, Dr. Oma: The Healing Wisdom of Countess Juliana Von Stolberg (P&R Publishing, 2006).

From this marriage five children were born: On 20 September 1531 Juliana married William I, Count of Nassau-Siegen.