Chamuis. Sir Robert Keith, the Marishchal, escorted the young David II of Scotland when he fled to France to escape the usurpation Edward Balliol. 15th century and Clan conflicts The Clan Keith were often at feud with the neighbouring Clan Irvine and, in 1402, the Clan Irvine are said to have attacked and defeated an invading war party of the Clan Keith in what was known as the Battle of Drumoak. Sir William Keith the Marischal who died in 1407 married the heiress of Sir Alexander Fraser and in doing so added great estates in Buchan, Kincardine and Lothian to his existing patrimony. William's brother, John Keith, married the Cheyne heiress which brought the Keiths massive estates in Inverugie as well as Inverugie Castle, which later became the seat of the clan chiefs. Three of Sir William Keith's children married children of Robert II of Scotland, while another daughter married Sir Adam Gordon, ancestor of the Earls of Huntly. Circa 1458, the heir of the Marischal or Great Marischal was made 1st Earl Marischal and was the only peer to be styled by his office of state. A branch of the Clan Keith who inhabited Caithness fought at the Battle of Tannach (probably 1464) where they assisted the Clan Mackay against the Clan Gunn. They later fought another battle against the Gunns, known as the Battle of Champions (probably 1478). This battle was fought between twelve men of the Clan Gunn and twenty four men of the Clan Keith. All the Gunns, including the chief of the clan, were killed. However, Keith of Ackergill was soon after killed by the Gunns in a revenge attack. 16th and 17th centuries William Keith, 3rd Earl Marischal, along with the Earl of Glencairn invited John Knox the religious reformer back to Scotland in 1559. William Keith, 4th Earl Marischal, founded the Marischal College in Aberdeen. George Keith, 5th Earl Marischal, undertook the embassy to Denmark which resulted in the marriage of James VI of Scotland to Anne of Denmark. After Charles II of England was crowned in 1651, William Keith, 7th Earl Marischal, was captured and imprisoned in the Tower of London. He remained there until the Restoration when the king appointed him a Privy Councillor and later Lord Privy Seal as recompense for what he and his family had suffered in the royal cause. After Charles's coronation the Scottish crown jewels had