Frank van Borssele

From late 1421 to early 1423 Frank van Borssele played an essential role in the financial government of the county, as he was a loyal supporter of John III and Philip the Good, Duke of Burgundy.

In 1428 Jacqueline signed the Treaty of Delft, which left her Countess only in name, with Frank van Borssele as the regent of her lands.

In 1430 Borssele was the Burgundian stadhouder and "Opperhoutvester" of Holland, in the same year he became lord of Gorinchem, Leerdam, de Leede and Schoonrewoerd.

Philip the Good, fearful of yet another pretender to the titles of Count of Holland and Zeeland kidnapped Frank and incarcerated him in Flanders.

Legend later tells another story in which Frank and Jacqueline of Hainaut fell in love and secretly married in 1432.