

R' Yitzchak Chayes z"l
R' Yitzchak ben Avraham Chayes served successively in the rabbinates of Prossnitz (Prostejov) and Prague, attracting numerous disciples with his erudition and saintliness. The 16th century historian, R' David Ganz, writes of him in his Tzemach David, "The great rabbi whose fame has spread throughout the Diaspora. He cultivated many disciples and furthered the knowledge of Torah."
R' Yitzchak was an adherent to the pilpul method of study that was popular in his time but has been widely rejected since then. He is best known for his work Pnei Yitzchak which was published in 1591. The work has two parts: Apei Ravrevei, which sets the Yoreh Deah section of the Shulchan Aruch to rhyme, and Apei Zuta, a commentary on the first part. R' Yitzchak's son, R' Monish, added two elegies to this work, one on the destruction of the city of Posen by fire in 1590, and the other on the death of his own 18-year-old son. (R' Monish was rabbi of Vilna.)
R' Yitzchak also wrote Siach Yitzchak, which sets the laws of Pesach to rhyme, Pachad Yitzchak, a commentary on the passage in Tractate Gittin which deals with the destruction of the Temple, and other, as yet unpublished, works.
R' Yitzchak died on the 11th of Tammuz in approximately 1616. (Several sources state that he died in 1585. This is clearly wrong, for Tzemach David states: "He came here, to Prague, in the year [5]344 [i.e., 1584], and he was the rabbi and rosh yeshiva here for three-and-a-half years, may Hashem lengthen his days with pleasantness and may his throne become greater and loftier, higher and higher." Tzemach David was written in approximately 1592.)
Among R' Yitzchak's many prominent descendants were: R' Yitzchak Chayes, author of the Mishnah commentary, Zera Yitzchak; the 19th century Talmud commentator R' Zvi Hirsch Chayes (the "Maharitz Chayes"); and R' David Hillel Altshuler, author of the popular Tanach commentary, Metzudat David. Chief Rabbinical Judge of Prague
Great-grandfather of the Mekubal Yitzchok Chayos, AB'D of Skolye
Regarding possible connections to the Maharal
Author
Listed in Toldos Avrohom, p. 464
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death: Lemberg, Poland/Lviv, Ukraine ??
Note: several decades after the the death of Yitzoch Chayes ABD Prague there is another Yakov Yitzach Chayes who is a Dayan and Morej Zedek in Prague: Yakov Yitzach Chajes, Dayan and Moreh Zedek of Prague
This raises the possibility that the two were related, perhaps as uncle/nephew, which would mean that Avraham Chayes is the grandfather of Yakov Yitzach.
1538 |
1538
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Prague, Prague, Czech Republic
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1560 |
1560
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1615 |
June 28, 1615
Age 77
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Prague, Hlavní město Praha, Prague, Czechia (Czech Republic)
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