The marriage appears to have been successful, and William is not recorded to have had any bastards. Matilda was about 35, and had already borne most of her children, when William embarked on the Norman conquest of England, sailing in his flagship "Mora", which Matilda had given him. She governed the Duchy of Normandy in his absence, joining him in England only after more than a year, and subsequently returning to Normandy, where she spent most of the remainder of her life, while William was mostly in his new kingdom. She was about 52 when she died in Normandy in 1083.