Her father, Pepin I, served as mayor of the palace under the Frankish kings, and her mother, Itta, was believed to be related to the bishop of Metz. As the youngest child in a prominent family, Gertrude was expected to marry and strengthen political alliances through marriage. However, at the age of 10, she boldly refused a proposal from King Dagobert’s son, declaring her intention to remain unmarried and devote her life to Christ.

Monastic Life

Following her father’s death in 640, Itta sought to protect Gertrude from unwanted suitors by establishing a double monastery in Nivelles—one for men and one for women—where Gertrude became abbess. Under her leadership, the monastery flourished as a center for charity and hospitality. Gertrude dedicated herself to studying scripture and caring for those in need, including the sick and elderly.

While St. Gertrude is primarily known for her piety and charitable works, she also developed a notable association with animals, particularly rodents and cats. In medieval times, rats were common pests that posed significant health risks; thus, people sought intercession from saints like Gertrude to protect against these vermin. Iconography often depicted her with mice or rats at her feet due to this role as a protector against rodent infestations.

Over time, this association evolved into a connection with cats. Since cats are natural predators of mice and rats, they became linked with St. Gertrude through their shared role in controlling these pests. This transition appears to have gained traction particularly in the late 20th century when cat lovers began invoking St. Gertrude not only as a protector against rodents but also as a patron saint of cats themselves.

St. Gertrude died on 17 March at the young age of 33 after years of service as abbess and caretaker within her community. She was venerated immediately after her death; churches were built in her honor, and many miracles were attributed to her intercession during her lifetime.

By Teresa Mulgrew