Joseph Burg, 90, an Israeli founding father, longtime Cabinet minister and advocate of coexistence between religious Jews and secular Israelis, died Oct. 15 at a hospital here. The cause of death was not disclosed.

The German-born Mr. Burg, who escaped to pre-state Palestine just before the outbreak of World War II in 1939, was a figure of moderation and reconciliation in Israel's rough-and-tumble political scene.

"His most important legacy is that he tried to build a bridge over the biggest gulf in Israeli society, the gulf between religious and secular Jews," said Israel's elder statesman, former prime minister Shimon Peres. "He was a religious man, but he believed in compromise."

Prime Minister Ehud Barak said Mr. Burg took the path of moderation and tolerance and showed a love for Jewish traditions.

Mr. Burg was an avuncular man with a round face and glasses, famous for his erudite wit. Political writers dubbed his appearances at question time in parliament "Burgtheater," after the famous playhouse in Vienna.

Mr. Burg, who was born in Dresden, Germany, was active in the Young Mizrahi religious Zionist movement while attending university in Leipzig, Germany. He was studying in Berlin when the Nazis came to power in 1933, but he managed to complete his doctorate as well as qualify as an ordained rabbi.

In 1939, he came to Palestine, and worked as a high school teacher but was soon elected to the executive committee of the Jewish Agency, which served as a pre-state shadow government for the Jews in Palestine.

He was one of the founders of the National Religious Party, which has been a coalition partner in almost every Israeli government.

Mr. Burg viewed the NRP as a bridge between the ultra-Orthodox and the secular, and between the left and right wings in Israeli politics. He had a habit of hyphenating the expression "national religious" and when he was asked which of the two elements was more important in the doctrine of his party, he quipped "the hyphen."

For 19 years, the NRP played a centrist role in Israeli politics, but when Israel captured the West Bank and the Gaza Strip in the 1967 Mideast war, the younger generation in the party moved rapidly to the right. For them, the West Bank was the heartland of the biblical land of Israel, and they spearheaded the movement to establish Jewish settlements there.

Mr. Burg remained a Cabinet minister until 1988, but the leadership of the NRP had long since passed into the hands of the younger generation. He served in the Cabinet for 38 years.

In 1977, he was placed in charge of peace negotiations with Egypt. Mr. Burg wholeheartedly supported the 1979 land-for-peace deal, but many in his party opposed it, fearing that an Israeli withdrawal from the Sinai Peninsula would set a precedent for a pullback from the West Bank.

Peres said Mr. Burg would bring hard-boiled-egg sandwiches to the negotiations in Cairo and Alexandria so he would be able to keep Jewish dietary laws.

In addition to Hebrew and German, Mr. Burg spoke English, French, Spanish, Latin, Greek and Yiddish.

Survivors include his wife, a daughter and a son, Avraham Burg, who is the speaker of the Knesset, or Israeli parliament.