Garsenda was the daughter of Rainou, lord of Caylar and Ansouis of the Sabran family, and Garsenda, daughter of William IV of Forcalquier. She was named after her mother, who was the heiress of William IV, but predeceased him. Garsenda therefore inherited Forcalquier from her grandfather. She was only thirteen years of age when, in 1193, her grandfather William IV and Alfonso II signed the Treaty of Aix whereby Garsenda would inherit William's county and would marry Alfonso, who was in line to become Count of Provence. The marriage took place at Aix-en-Provence in July 1193. They had at least two children, Raymond Berengar IV and Garsenda, who married Guillermo II de Montcada, and bore him two children, including Gaston VII, Viscount of Béarn.
Regency and patronage
In 1209 both William IV and Alfonso died and Garsenda became the natural guardian of their son and heir, Raymond Berengar IV. Initially her brother-in-law, Peter II of Aragon, assigned the regency of Provence to his brother Sancho, but when Peter died in 1213 Sancho became regent of Aragon and passed Provence and Forcalquier to his son Nuño Sánchez. Dissension broke out between the Catalans and the partisans of the countess, who accused Nuño of attempting to supplant his nephew in the county. The Provençal aristocracy originally took advantage of the situation for their own ambitious ends, but eventually they lined up behind Garsenda and removed Nuño, who returned to Catalonia. The regency was passed to Garsenda and a regency council was established consisting of the native nobles.
It was probably during her tenure as regent that Garsenda became the focus of a literary circle of poets, though the vida of Elias de Barjols refers to his patron as Alfonso. There is a tenso between a bona dompna, identified in one chansonnier as la contessa de Proessa, and an anonymous troubadour. The two coblas of the exchange are found in two different orders in the two chansonniers, called F and T, that preserve them. It cannot be known therefore who spoke first, but the woman's half begins Vos q'em semblatz dels corals amadors. In the poem the countess declares her love for her interlocutor, who then responds courteously but carefully. Under some interpretations the troubadour is Gui de Cavaillon, whose vida repeats the rumour that he was the countess' lover. Gui, however, was at the Provençal court between 1200 and 1209, pushing the date of the exchange forward a bit. Elias de Barjols apparently "fell in love" with her as a widow and wrote songs about her "for the rest of his life", until he entered a monastery. Raimon Vidal also praised her renowned patronage of troubadours.
Retirement and later life
In 1220 Guillaume II de Sabran, a nephew of William IV, who claimed Forcalquier and had been in revolt in the region of Sisteron, was neutralised in part through the mediation of the Archbishop of Aix, Bermond le Cornu. By 1217 or 1220 Garsenda had finally ceded Forcalquier to her son and handed the reins of government over. Garsenda retired to the monastery of La Celle around 1225. In 1242, she went to visit her newly born great-granddaughter, Beatrice of England, and her parents in Bordeaux. As the father of infant Beatrice, Henry III of England, was engaged in a war in France at the time, she brought 60 knights to his service. Garsend may have been alive as late as 1257, when a certain woman of that name made a donation to a church of St-Jean on the condition that three priests be kept to pray for her soul and that of her husband.
