When he was shown the image of his wife and her family at the spot, William remarked that he would "need to come back with the family" to re-create it.
William's marks the first time a member of Britain's royal family visited Israel as an official representative of the London government.
The duke will be joined by Chief Rabbi Ephraim Mirvis during his visit, when he will leave his floral tribute in Yad Vashem's Hall of Remembrance.
Later, the prince will meet Israeli President Reuven Rivlin and Prime Minister Benjamin Netanyahu before heading to coastal Tel Aviv to attend a football game of young Jewish and Arab players.
Although not confirmed, local Israeli media have been speculating about Prince William visiting the three major religious sites in Jerusalem; the Church of the Holy Sepulchre, the al-Aqsa Mosque and the Dome of the Rock on the Temple Mount, and the Western Wall. "It was as if he knew us, he knew the background and he made us feel so at home".
"I'm very grateful to Britain because it saved my life, it's as simple as that", said Foner, 86. "And he really wants to get under the skin of the country", Quarrey added. Jerusalem Affairs Minister Zeev Elkin - who is running for mayor of the city in this year's elections - called the reference a "distortion" that can not "change reality".
On Wednesday Wills will become the first ever royal to visit the Occupied Palestinian Territories, where he will meet leader Mahmoud Abbas.
Israel captured east Jerusalem from Jordan in the 1967 Mideast war and annexed it in a move not internationally recognized.
For the British it is - East Jerusalem was annexed by Israel in the 1967 war - but the Israelis see the whole city as their capital.
Ambassador Quarrey insisted the wording merely reflected decades of terminology used by British governments.
The duke's visit comes during a period of increased tension in the region.
William's trip also included a tour of a business and technology lab, as well as a little R&R with Prince Abdullah as they watched the England-Panama soccer match and visited with Syrian refugees who were taken in by Jordan.
In 87F (31C) blazing sunshine, William went to Jerash to help showcase the 1st century Roman ruins, Jordan's second most popular tourist destination after the ancient city of Petra.
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