Queen Elizabeth II and Prince Philip were related through blood lineage, as they had a lifelong relationship spanning over 73 years.
Philip was born into the Greek and Danish royal families, his father Prince Andrew of Greece and Denmark and his mother Princess Alice of Battenberg.
To become the Queen’s husband, Philip, who was sixth in line to the throne of Greece, had to renounce his Greek and Danish royal titles and become a naturalised British subject.
He adopted his maternal grandparents’ surname Mountbatten, and shortly before the wedding was given the titles Duke of Edinburgh, Earl of Merioneth and Baron Greenwich.
In addition to both having Royal upbringings, they are actually related through blood lineage. Through King Christian IX, Philip and Elizabeth are second-cousins once removed.
Through Queen Victoria, they are third cousins as they are both her great-great-grandchildren.
Queen Victoria had nine children, and most of them married into other royal families across the world.
Queen Elizabeth II is a direct descendant of Queen Victoria on her father’s side, while Philip is Queen Victoria’s direct descendant on his mother’s side.
See family tree below;