King James VI of Scotland (1566-1625) became King of England, first of the Stuart dynasty, after the death of Elizabeth I. He brought a new, more autocratic, style of government and was a believer in the Divine Right of Kings - the idea that monarchs were answerable only to God. These ideas were inherited by his son, Charles I, and put the monarchy on a collision course with the English Parliament.
Mary II 1662-1694, Queen of England, Scotland, and Ireland (1689-1694) in her own right. She was the daughter of King James II & VII of England, Scots, and Ireland and his 1st wife, Anne Hyde. She was Sovereign Princess of Orange (1677-1694) as the wife of Willem III, Sovereign Prince of Orange. Her husband became her co-monarch as King William III & II.
James IV (1473 - 1513). King of Scotland from 1488 to his death in 1513. He is regarded as the most successful of the Stewart monarchs. He was last monarch of Scotland to be killed in battle. He died in the Battle of Flodden Field when he tried to invade England. He married Margaret Tudor and had four sons.
James I of England & VI of Scotland, he was the successor to the English throne when his cousin several-times-removed Queen Elizabeth I died. He is best known for his sponsorship of the King James Bible.