A commemorative obelisk bearing a street plan of the former Jewish Quarter, carved in granite, stands to the right of the stairs leading to the castle. It was placed here in 1986 at the initiative of Symcha Wajs, a native Lubliner. It is situated in a place where a house at 13 Szeroka Street used to be.Szeroka Street (Ulica Szeroka), also called Żydowska Street, used to run on the eastern side of today’s Plac Zamkowy. The street, with a dozen or so synagogues and houses of prayer, constituted the centre of Jewish life in Lublin. It is mentioned by Majer Bałaban (Meir Balaban, 1877-1942) in his Die Judenstadt von Lublin (Berlin, 1919), a German guidebook of the Lublin Jewish district, rich in historical details. Bałaban described the Boilermakers’ Synagogue, located at the beginning of Szeroka Street, and thus close to the entry to modern-day Plac Zamkowy. The synagogue was situated on the upper floor of the house at 2 Szeroka Street and founded by Hirsh Doktorovitz, King Władysław IV’s court broker, in 1638. The trade clerks’ house of prayer, called Mshorsim Shul, was located across the street at number 3.