James Stuart, Duke of Cambridge KG (12 July 1663 – 20 June 1667) was the second son of the Duke of York (later James II of England) and his first wife, Anne Hyde. In 1664, the infant James became the first Duke of Cambridge and Baron of Dauntsey , titles his uncle, King Charles II , created especially for him.
Margaret’s first pregnancy resulted in the birth of James, Duke of Rothesay at the Palace of Holyroodhouse in February 1507. However, this heir to the throne died a year later in February 1508. At this point Margaret was already pregnant with a second child, a daughter whose name is unknown, and who was born and died in July 1508.
History. David Stewart, Duke of Rothesay, the son of King Robert III of Scots, first held the dukedom from its creation in 1398.After his death, his brother James, later King James I, received the dukedom.
Duke of Cambridge, one of several current royal dukedoms in the United Kingdom as of 2022, is a hereditary title of specific rank of nobility in the British royal family. The title (named after the city  of Cambridge in England ) is heritable by male descendants by primogeniture , and has been conferred upon members of the British royal family several times.
James I (late July 1394 – 21 February 1437) was King of Scots from 1406 until his assassination in 1437. The youngest of three sons, he was born in Dunfermline Abbey to King Robert III and Annabella Drummond. His older brother David, Duke of Rothesay, died under suspicious circumstances during detention by their uncle, Robert, Duke of Albany.
Charles James Spencer-Churchill, 12th Duke of Marlborough (born 24 November 1955), styled Earl of Sunderland until March 1972 and Marquess of Blandford until October 2014, and often known as Jamie Blandford or Jamie Marlborough, is an English peer and the current Duke of Marlborough.
Having decided to follow a military career, William was admitted to the Royal Military Academy Sandhurst in January 2006. As "Lieutenant Wales"—a name based on his father's title Prince of Wales—he followed his younger brother into the Blues and Royals as a troop commander in an armoured reconnaissance unit, after which he spent five months training for the post at Bovington Camp, Dorset.