Henry VIII is Elizabeth II 's 12th Great Grand Uncle and 13th great Grand uncle through Henry VII. Henry VIII had 3 legitimate children who had no children, so the his branch of the Tudor lineage is a dead-end; there are no legitimate descendants of Henry VIII. Elizabeth II is a descendant of Henry VIII's sister Margaret Tudor who married King James IV of Scotland. Margaret, like her two brothers Arthur and Henry, shared an interesting ancestry; their parents were Henry VII and Elizabeth of York, both descendants of Edward I by different wives. The following is Elizabeth II's lineage since that time, which you can confirm from the link after this answer: James V of Scotland was the son of Margaret Tudor and James IV of Scotland. Mary Queen Of Scots (Mary Stuart) was the daughter of James V of Scotland and Margaret of Guise. James VI of Scotland, later crowned James I of England following the death of Elizabeth I, was the son of Mary Queen of Scots and Henry Lord Darnley. Princess Elizabeth Stuart, sister of Charles I, was the daughter of James I and Anne of Denmark. Charles' branch of the Stuart lineage became a dead-end. Sophia of Hanover was the daughter of Elizabeth Stuart and Frederick V of Bohemia. George I was the son of Sophia of Hanover and Ernst Augustus, Elector of Hanover. George II was the son of George I and Sophia Doreothea of Celle. Frederick, Prince of Wales, was the son of George II and Caroline of Ansbach. George III was the son of Frederick, Prince of Wales, and Augusta of Saxe-Coburg. Edward, Duke of Kent, was the son of George III and Charlotte of Mecklenburg. Queen Victoria was the daughter of Edward, Duke of Kent, and Victoria of Saxe-Coburg. Edward VII was the son of Queen Victoria and Albert of Saxe-Coburg-Gotha. George V was the son of Edward VII and Alexandra of Denmark. (In 1917, George V decreed a change in his family's name from "Saxe-Coburg-Gotha" to "Windsor".) George VI was the son of George V and Mary of Teck. Elizabeth II is the daughter of George VI and Elizabeth Bowes-Lyon.