Guglielma Pallavicini

Guglielma Pallavicini (c. 1300–1358), the Lady of Thermopylae, was the last Pallavicini ruler of the March of Bodonitsa in Frankish Greece. On her father Albert's death in 1311 she inherited the march, at first ruling with her mother and later with her stepfather Andrea Cornaro.

In 1327 she married the Genoese Bartolomeo Zaccaria; widowed in 1334, she married the Venetian Niccolò Zorzi, with whom her long quarrel over Larena Castle drew in Venice and the Catalans. After Zorzi's death in 1354 she ruled with their son Francis until 1358.