Robert de Sable was born in 1150 AD to parents Robert III de Sable and Hersende d’Anthenaise, a military family in Anjou, France. He would marry Clemence de Mayenne who gave birth to children Marguerite and Philippa.
Sable supported Henry, heir apparent to the English throne and duchy of Normandy, in a revolt against his father Henry II during the 1173-1174 revolt. The uprising was crushed, Robert remained in favour with the Angevin kings, as Richard would put his weight behind him, in Sable’s appointment as Grand Master of the Knights Templar in 1191.
Sable became one of Richard I Crusading Fleet leaders, during the Third Crusade to the Holy Land. One event was the “Battle of Arsuf,” which took place on the 7th September 1191, resulting in a major defeat and retreat of Saladin forces.
Following the death of Gerald de Ridefort who died at the Siege of Acre in 1189. Sable joined the Order of the Knights Templar. His estate passed to his daughter Marguerite de Sable, when he joined the Templar Order in 1190. She who was married, passed it over to her husband; William des Roches, a knight of the Third Crusade.
Richard, urged the Templar Order to elect Robert de Sable, as its new Grand Master in 1191. Robert de Sable became the new Grand Master in 1191, and went on to purchase Cyprus from King Richard I for 25,000 pieces of silver, serving as its Lord until 1193, when he sold the island to Guy de Lusignan, King of Jerusalem.
On the 23rd September 1193, Robert de Sable died in Arsuf, Israel.