Geoffrey III, vicomte de Thouars

From Reference to brother Herbert: 1093-1104:Herbert II, Geoffrey III's brother, died at the First Crusade in Jaffa (Palestine) in 1104. He was the son of Aimery IV and Ameline. It immediately succeeds his father Aimery IV. On February 10, 1096, Bishop Peter of Poitiers restores Airvault Abbey, with the agreement of Herbert, Viscount of Thouars, son of the late Viscount Aimery. On December 7, 1099, his family surrounding Arbert at the dedication of the Church of St. Nicolas de la Chaise, started by his father and has been completed; then found him with his brother Geoffrey, told Tiffauges, its Sister Hildegard is wife of Hugues de Lusignan, Raoul and his uncle, said Maule.

At that time we can measure the extent of Viscount of Thouars by fiefs under its control. These are Bressuire, Gifted, Passavant, the Argenton Chateau, Airvault, La Foret sur Sevre, Montaigu, La Roche sur yon, Till, Châteaumur, Pouzauges, Les Essarts, Lezay, Commequiers, and more.

Like many of his contemporaries, Viscount Herbert went to Palestine, the first time in 1098. He left with his brother Geoffrey in 1102 as part of the crusade led by the Duke William IX of Aquitaine. His banner was strewn with golden fleur de lys Azure Gules franc area. These arms have remained those of his house, they then become those of the city of Thouars. Many pilgrims died during the journey from Constantinople in Jerusalem. When Herbert wanted to go back to France, he died in Jaffa in 1104. He was buried near the church of Saint Nicolas de Jaffa. He married 1095 to Agnes with whom he had two son, and Herbert Aimery VI.
1104-1123:Geoffroy III. Brother of the previous

married in 1094 to Ameline.

Source: http://en.wikipedia.org/wiki/List_of_viscounts_of_Thouars