At some point prior to 1180, Andrew held land of the chateaux de Monthoiron in Poitou and perhaps even possessed a fortified manor there.
Later that year, after Henry had died, and Richard reconciled the Angevin barons to him, he offered Andrew as a reward for his service, Denise, Countess of Devon (1173–1221), widow of the third Earl, who was the heiress of Raoul VII de Deols (d. 1176).
This immediately made Andrew one of the most powerful lords of Poitevin Berry, an important frontier zone of the Angevin Empire that protected the roads leading to the capital cities of Tours, Poitiers and Angers.
According to the chronicler Richard de Templo, during one of the many skirmishes the crusaders fought against Saladin's forces, Andrew was wounded through the arm by a Muslim lance.
Andrew was granted command by Richard over many other key crusader lords, and at one point, even Robert IV of Leicester and Hugh of Saint-Pol seem subordinate to him.
Upon Andrew's return from the crusade, he found that King Philip of France had taken much of the land in Poitevin Berry, including the important castle of Issoudun.
Andrew fought with the forces of Duke Arthur against King John of England and William des Roches, now seneschal of Anjou and sire de Sable, at the Battle of Mirebeau in 1202.
In any case, he died that year, and John gave his widow's English lands back to the Earls of Devon.