Giovanni Battista Scanaroli or Giovanni Battista Scannaroli (1579 – 10 September, 1664) was a Roman Catholic prelate who served as Titular Bishop of "Sidon" (1630-1664).
Giovanni Battista Casanova (] ; 2 November 1730 – 8 December 1795) was an Italian painter and printmaker of the Neoclassic period.
 He was a brother of Giacomo Casanova and Francesco Giuseppe Casanova and was born at Venice.
 He studied painting under Israel Silvestre and Dietrich at Dresden, and went in 1752 to Rome, where, under the tuition of Anton Raphael Mengs, he became an accomplished artist in pencil and crayon.
 Among other works he designed the plates to Winckelmann's "Monumenti antichi".
 He was appointed professor in the Academy at Dresden in 1764.
Giovanni Battista Bertani (1516–1576) was an Italian painter and architect of the late Renaissance period.
 He trained with Giulio Romano in Mantua, and was promoted after Romano's death to the post of prefect of the ducal studio (fabbriche).
 Painters who assisted him over the years include his brother Domenico, as well as Giovanni Battista del Moro, Geronimo Mazzuola, Paolo Farinato, Domenico Brusasorci, Giulio Campi, and Paolo Veronese.
 He is said to have completed a partial translation of the work of Vitruvius.
The Church of San Giovanni Battista (Italian: "Chiesa di San Giovanni Battista" ; German: "Kirche San Giovanni Battista" ) is located in the alpine village of Mogno in the Swiss canton of Ticino.
 It was built between 1994 and 1996 on the site of an older church (from 1626), which was levelled by an avalanche in 1986.
 The church is named after St John the Baptist.
The Church of San Giovanni Battista (Italian: "Chiesa di San Giovanni Battista" ) is a church located in the center of Praiano, a small "comune" located on the Amalfi Coast in southern Italy.
 Constructed in the Romanesque style, San Giovanni Battista has a rectangular plan and a vaulted ceiling, featuring Italian Baroque design elements on the inside.
 Dating back to the 11th–12th centuries, the church features a very well preserved maiolica flora- and fauna-inspired tiled floor and a pipe organ from Neapolitan organ masters.
Giovanni Battista di Giovannofrio, also known as Giovanni Battista di Norcia was an Italian painter, active in a Renaissance style.
 He is the brother of the painter, Giacomo Giovannofrio.
Giovanni Battista Lamperti (24 June 1839 – 18 March 1910) was an Italian singing teacher and son of the singing teacher Francesco Lamperti.
 He is the author of "The Technics of Bel Canto" (1905) and source for "Vocal Wisdom: Maxims of Giovanni Battista Lamperti" (1931).
Giacomo Girolamo Casanova (] or ] ; 2 April 1725 – 4 June 1798) was an Italian adventurer and author from the Republic of Venice.
 His autobiography, "Histoire de ma vie" ("Story of My Life"), is regarded as one of the most authentic sources of the customs and norms of European social life during the 18th century.
Società Torinese Automobili Rapid, also known as S.T.A.R. and Rapid, was an Italian car manufacturer founded by Giovanni Battista Ceirano in Turin in July 1904.
 "Rapid" was its trademark.
 In 1921 it was acquired by the S.P.A. (Società Piemontese Automobili) company that had been founded by Giovanni Battista's brother Matteo Ceirano, and which, in 1925, was taken over by Fiat.
Juan Battista de Ojeda (died 1574) also Giovanni Battista de Hogeda or Giovanni Battista de Oxeda was a Roman Catholic prelate who served as Archbishop (personal title) of Agrigento (1571-1574) and Archbishop of Trani (1560-1571).

Question:  Giovanni Battista Casanova's brother was from where? 
Answer: the Republic of Venice