Pembroke Castle stands on a site that was occupied during the
Roman period, and recent discoveries in Wogan Cave underneath the castle show humans occupied the site at the end of the last ice age.
Roger of Montgomery founded the first castle here in 1073. The castle was established at the heart of the
Norman-controlled lands of southwest Wales. When
William Rufus died, Arnulf de Montgomery joined his elder brother,
Robert of Bellême, in rebellion against
Henry I, William's brother and successor as king; when the rebellion failed, he was forced to forfeit his lands and titles. Henry appointed his castellan, but when the chosen ally turned out to be incompetent, the King reappointed Gerald in 1102. By 1138
King Stephen had given Pembroke Castle to
Gilbert de Clare who used it as an important base in the
Norman invasion of Ireland. in the castle In August 1189
Richard I arranged the marriage of
Isabel, de Clare's granddaughter, to
William Marshal who received both the castle and the title,
Earl of Pembroke. He had the castle rebuilt in stone and established the great
keep at the same time. Marshal was succeeded in turn by each of his five sons. His third son,
Gilbert Marshal, was responsible for enlarging and further strengthening the castle between 1234 and 1241. All of Marshal's sons died childless. In 1247, the castle was inherited by
William de Valence (a half-brother of
Henry III), who had become Earl of Pembroke through his marriage to
Joan de Munchensi, William Marshal's granddaughter. '' by
Richard Wilson, 1765 The de Valence family held Pembroke for 70 years. During this time, the
town was fortified with
defensive walls, three main gates and a
postern. In the 15th and 16th centuries, the castle was a place of peace until the outbreak of the
English Civil War. Although most of South Wales sided with
the King, Pembroke declared for
Parliament. It was besieged by
Royalist troops but was saved after Parliamentary reinforcements arrived by sea from nearby
Milford Haven. Parliamentary forces then went on to capture the Royalist castles of
Tenby,
Haverfordwest and
Carew. In 1648, at the beginning of the
Second Civil War, Pembroke's commander Colonel
John Poyer led a Royalist uprising alongside Colonel Powell, Tenby Castle, and Sir
Nicholas Kemoys,
Chepstow Castle.
Oliver Cromwell came to Pembroke on 24 May 1648 and took the castle after a
seven-week siege. Its three leaders were found guilty of treason and Cromwell ordered the castle to be destroyed. Townspeople were even encouraged to disassemble the fortress and re-use its stone for their purposes. == Wogan Cavern ==