Even before the birth of the new British royal baby to Prince William and his wife Kate, genealogists are looking into its family tree, and are coming up with many surprises.

The baby's relations will stretch from a simple Parisian actress via the Dracula princes in Romania, to even an Islamic sultan from Seville in Spain, who descended from the Muslim Prophet Mohammed, experts say.

Mary, the wife of King George V, who ruled from 1910 to 1936, the line stretches back right to the princes of Transylvania and Walachia in Romania.

That leads back in the fifteenth century to the Princes Dracula. Among them figures the Voivode Vlad III who inspired, by his cruelty, the Irish writer Bram Stoker's famous vampire.

Via a French woman, a protestant noblewoman bom in 1639 in France's region of Poitou, the child

The family tree of the baby's father Prince William, who is second in line to the throne, is strongly tied to the European Gotha line.

There one finds, alongside all Britain's kings, the sovereigns of Greece, Denmark, Sweden, Russia, Austria, Spain and a good number of German sovereigns.

The British family was called Saxe-Coburg-Gotha until 1917, date on which, mired in a war with Germany, it opted for the name Windsor.

The future king or queen of the United Kingdom will be cousin with a large number

will even be a cousin of late French president Francois Mitterrand, while her mother is related to the first president of the United States, George Washington.

Through its grandmother Diana, the royal baby will have a link with the families of Winston Churchill and Lord Marlborough, who inspired a popular French folk song.

But the most astonishing discovery is a little-known ascendancy of one of its distant ascendants, the queen of France, Marie de’ Medici, descendant of Alphonse VI ofCastillia, who died in 1109. His fourth wife Zaida, who

of his or her subjects as Kate's mother's side has largely working class ancestry.

But there are other surprises in store in the royal family's family tree. Through Queen

was an Islamic princess converted to Roman Catholicism, had as an ancestor, according to Beaucamot," a king of Seville considered a direct descendant of the Prophet Mohammed".