She was the daughter of Tomasz Zamoyski, voivode of Podole and Chancellor and Princess Katarzyna Ostrogska.

She became involved in domestic politics after her son was elected to the throne, although over time her relationship with him soured.

She contributed to her son's marriage to Eleanor of Habsburg, attempting to strengthen his weak authority and striving for an agreement with his political opponents.

She probably arranged the marriage of Dymitr Wiśniowiecki with Sobieski's niece, but she failed to bring about a real agreement; over time, she began to lose influence over her son, who reportedly even avoided her company.

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