Question: Salzburg Global Seminar is held at a palace located on which lake?

Context paragraphs:
Schloss Leopoldskron: Schloss Leopoldskron is a rococo palace and a national historic monument in Leopoldskron-Moos, a southern district of the city of Salzburg, Austria.  The palace, and its surrounding seven hectare park, is located on the lake "Leopoldskroner Weiher".  The palace has been home to Salzburg Global Seminar since 1947.  In 2014, the palace and the neighboring Meierhof building were opened as a privately owned hotel, Hotel Schloss Leopoldskron.

Timothy W. Ryback: Timothy W. Ryback is an American historian and director of the Institute for Historical Justice and Reconciliation in The Hague.  He previously served as the Deputy-Secretary General of the Académie Diplomatique Internationale in Paris, and Director and Vice President of the Salzburg Global Seminar.  Prior to this, he was a lecturer in the Concentration of History and Literature at Harvard University.

Stephen Salyer: Stephen Salyer is president and chief executive officer of the Salzburg Global Seminar, an independent, non-governmental organization based in Salzburg, Austria and Washington, D.C..  He has been president and chief executive officer of Public Radio International (PRI) and senior vice president at WNET/Thirteen in New York City, the flagship producer for the PBS television network.

Behistun Palace: Behistun palace is a ruined Sassanid palace located in Bisotun, 20 km from Kermanshah, Iran.  It faces the cliff with the much older Behistun inscription and rock relief, across the ancient road running between Behistun mountain and Behistun lake.  The palace has long been regarded in Persian tradition as a residence of Shirin, queen of Khosrau II, the Sassanid Shah of Persia who reigned from 590 to 628, shortly before the Muslim conquest of Persia.  This connection is first documented, in surviving records, by early Islamic geographers, and is elaborated in various later stories and myths, as a fictionalized Shirin became an important heroine of later Persian literature, such as the Shahnameh.  It is included in the UNESCO World Heritage Site of Bisotun.

Arthur S. Adams: Arthur S. Adams (July 1, 1896 – November 18, 1980) was an American academic most notable for having served as president of the University of New Hampshire.  He also served as Assistant Dean of Engineering and Director of the Engineering Science Management War Training Program and Provost at Cornell.  In 1948 he was appointed president of the University of New Hampshire.  He was chairman of the Reserve Forces Policy Board at the United States Department of Defense from 1953 to 1955.  From 1962-1965, he served as the second president of the Salzburg Global Seminar, a non-profit organization based in Salzburg, Austria, whose mission is to challenge current and future leaders to develop creative ideas for solving global problems.  Dr. Adams co-authored "The Development of Physical Thought and Fundamentals of Thermodynamics".

Schloss Klessheim: Schloss Klessheim is a Baroque palace located in Wals-Siezenheim, 4 km west of Salzburg, Austria.  The palace was designed and constructed by Austrian architect Johann Bernhard Fischer von Erlach for Prince-Archbishop Johann Ernst von Thun in 1700.  It became the summer residence of the Archbishops of Salzburg.  Since 1993, the palace has been used by Salzburg Casino.

Salzburg Residenz: Salzburg Residenz is a palace located at Domplatz and Residenzplatz in the historic centre ("Altstadt") of Salzburg, Austria.  First mentioned about 1120, for centuries the Prince-Archbishops of Salzburg resided at the Residenz and used the palace to present and represent their political status.  Today the Salzburg Residenz palace is a museum and one of the most impressive attractions in the city.

Jal Mahal: Jal Mahal (meaning "Water Palace") is a palace located in the middle of the Man Sagar Lake in Jaipur city, the capital of the state of Rajasthan, India.  The palace and the lake around it were renovated and enlarged in the 18th century by Maharaja Jai Singh II of Amber.

Belabbes Benkredda: Belabbes Benkredda is an Algerian-German social innovator, writer, television commentator, and government consultant who specializes in public diplomacy.  He is the founder of The Munathara Initiative, an Arab online and television debate forum that promotes the voices of youth, women and marginalized communities in the Arab public.  He was a recipient of the 2013 Democracy Award of the National Democratic Institute, and is a Fellow of the Salzburg Global Seminar.  In 2016 he was named a World Fellow by Yale University.

Salzburg Global Seminar: Salzburg Global Seminar is a non-profit organization that hosts programs on global topics as diverse as health care, education, culture, economics, geopolitics, LGBT issues, justice, and sustainability.  Its objective is to "challenge present and future leaders to solve issues of global concern" through programs held at Schloss Leopoldskron, in Salzburg, Austria, and in other locations throughout the world.  It has hosted more than 500 sessions, consisting of more than 30,000 participants from 169 countries, since its establishment in 1947.

Supporting paragraphs: Salzburg Global Seminar Schloss Leopoldskron
Answer: Leopoldskroner Weiher