Johannes Kepler Had An Interesting Life

Johannes Kepler 1610

Johannes Kepler had an interesting life; not only was his mentor the infamous silver-nosed drinker, Tycho Brahe, but his mother was tried as a witch…

More than 300 years after Salem’s famous trials, American popular culture remains preoccupied with the supposed witches of 17th-century Massachusetts. But we do not hear much about the women accused of witchcraft across the ocean during the same period in Württemberg, Germany. In “The Astronomer and the Witch: Johannes Kepler’s Fight for his Mother,” Ulinka Rublack, a professor of early modern history at the University of Cambridge, introduces us to one of these witches, Katharina Kepler, who was tried in Württemberg in 1615-21.

Katharina was the mother of Johannes Kepler, a key figure in the Scientific Revolution that had begun to sweep Europe. In 1609, as court astronomer to Emperor Rudolph II of Prague, Johannes used the remarkable naked-eye observations of his predecessor Tycho Brahe to discover that the planets orbit the sun in paths that are elliptical—overthrowing the belief in circular orbits that had held since Aristotle’s time and strengthening the arguments for a heliocentric universe. Johannes was a deeply religious Lutheran whose scientific work was imbued with spiritual beliefs. He cast horoscopes, listened to the “music of the spheres” and understood the cosmos to be a living organism possessed of a soul. Like most people of his time, he believed in the existence of witches.

Witchcraft trials in Germany were family affairs. A woman prosecuted as a witch had to rely for her legal defense on her husband, if she had one, and on her brothers and sons, if she did not. Widows were frequent targets of such accusations, because their right to engage in commercial activities—denied to other women—gave them an independence that went against the social order. Many widows, including Katharina, earned money as healers, using strange herbs and incantations. People feared the power of these women.

Katharina’s first accuser was her own son Heinrich, a ne’er-do-well who had returned home after 25 years of fighting as a mercenary throughout Europe. Angered that she did not have enough food on hand to satisfy him, he “publicly slandered her as a witch,” as Ms. Rublack recounts, and died soon afterward. His comment would come to haunt the trial, which was prompted by a persistent neighbor of Katharina, who claimed that she had become lame after drinking one of Katharina’s potions. Once Katharina was charged, other disturbing facts came to light, such as her request that a gravedigger exhume her father’s head so that she could fashion the skull into a drinking vessel. Hearing this, even Johannes wondered if there was something to the allegations.

What happened to Katharina Kepler is a morality tale about the dangers faced by independent, strong-willed and sometimes disagreeable women in Germany in early modern Europe. It is also a valuable reminder that the Scientific Revolution was made by men with deeply held spiritual, religious and metaphysical views, including the belief that there were witches all around them—even, perhaps, at home.

(click here to continue reading Science, Sorcery and Sons – WSJ.)

More grist for the biopic…

Stop The Witchcraft
Stop The Witchcraft

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