Eustace IV, Count of Boulogne now lost, as a consequence of the Dissolution of the Monasteries. Eustace IV, Count of Boulogne Eustace IV (c. 1127–1135 – 17 August 1153), Count of Boulogne, was the eldest son of King Stephen of England and Countess Matilda I of Boulogne. When his father seized the English throne on Henry I's death in 1135, he became heir apparent to the English throne. Upon his mother's death in 1152 he inherited the county of Boulogne and other estates. Eustace was first mentioned in one of his parents' charters dated no later than August 1131. As heir to the English throne
Wars of the Roses reigned for 78 days as Edward V, but was then deposed by his uncle, who became Richard III. The final victory went to a relative and claimant of the Lancastrian party, Henry Tudor, son of Henry VI's half-brother Edmund Earl of Richmond, who defeated Richard III at the Battle of Bosworth Field. After assuming the throne as Henry VII, he married Elizabeth of York, the eldest daughter and heir of Edward IV, thereby uniting the two claims. The House of Tudor ruled the Kingdom of England until 1603, with the death of Elizabeth I, granddaughter of Henry VII and Elizabeth