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Grégoire, Henri
(Encyclopedia)Grégoire, Henri äNrēˈ grāgwärˈ [key], 1750–1831, French priest, writer, and revolutionist. A Jansenist (see under Jansen, Cornelis), he was prominent in the States-General of 1789 and support...Ruyter, Michiel Adriaanszoon de
(Encyclopedia)Ruyter, Michiel Adriaanszoon de mēkhēlˈ äˈdrēänsōnˌ də roiˈtər [key], 1607–76, Dutch admiral. His life was spent in the Dutch mercantile and naval service. He fought under Maarten Tromp ...Urban VIII
(Encyclopedia)Urban VIII, 1568–1644, pope (1623–44), a Florentine named Maffeo Barberini; successor of Gregory XV. Throughout his pontificate the Thirty Years War raged in Germany. For various political reasons...Fleury, André Hercule de
(Encyclopedia)Fleury, André Hercule de äNdrāˈ ĕrkülˈ də flörēˈ [key], 1653–1743, French statesman, cardinal of the Roman Catholic Church. Tutor of the young Louis XV, he became, at the age of 73, chief...Lorentz, Hendrik Antoon
(Encyclopedia)Lorentz, Hendrik Antoon hĕnˈdrək änˈtōn lōˈrĕnts [key], 1853–1928, Dutch physicist, a pioneer in formulating the relations between electricity, magnetism, and light. He was one of the first...Massys, Quentin
(Encyclopedia)Massys, Matsys, Messys, or Metsys, Quentin kvĕnˈtĭn mäsīsˈ, mätsīsˈ, mĕ–, mĕt– [key], c.1466–1530, Flemish painter. After studying in Louvain, he moved to Antwerp by 1491, remaining i...Port-Royal
(Encyclopedia)Port-Royal Fr. pôr-rwäyälˈ [key], former abbey of women, c.17 mi (27 km) W of Paris, founded in 1204. It was at first Benedictine, later Cistercian. In 1608 the abbess, Angélique Arnauld (see Arn...Zeeman effect
(Encyclopedia)Zeeman effect, splitting of a single spectral line (see spectrum) into a group of closely spaced lines when the substance producing the single line is subjected to a uniform magnetic field. The effect...Arnauld
(Encyclopedia)Arnauld ärnōˈ [key], French family involved in Jansenism (see under Jansen, Cornelis). The name is also spelled Arnaut or Arnault. The leader was a nun, Marie Angélique de Sainte Madeleine, 1591...Old Catholics
(Encyclopedia)Old Catholics, Christian denomination established by German Catholics who separated themselves from the Roman Catholic Church when they rejected (1870) the decrees of the First Vatican Council, especi...Browse by Subject
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