It was published here 12-20 September 1831 r. "Gazeta Narodowa". W 1863 r. several dozen inhabitants of Zakroczym joined the insurgent unit created by the mayor of Rychłowski. In the interwar period, Kazimierz Stabrowski used to visit Zakroczym for painting plein-airs (1869-1929). His landscape depicting the "Church of. Exaltation of the Holy Cross at Sunset "z 1928 r. 11 -29 September 1939 r. fierce fights with the Germans related to the defense of the Modlin fortress. Initially, Zakroczym was defended by the soldiers of the "Modlin" army, then from 13 September 2 The Infantry Division of the "Łódź" army. Episode "Zakroczym", manned by approx. 2500 soldiers 2 pp. leg., then commanded by Colonel Antoni Staich. Immediately after the capitulation, the Nazis shot several hundred prisoners of war and civilians. From 11 August to 23 October 1944 r. in Fort I in the north-east. on the outskirts of the city there was a transit camp for deported residents of right-bank Warsaw and towns near Warsaw, through which approx. 14 000 people (mostly men). For the prisoners of the camp, the inhabitants of the city and the surrounding area created an efficient aid system that protected many people from starvation (so-called. The Zakroczym Family). After the war, an elementary school was built in Zakroczym with the contributions of the rescued camp prisoners as a monument of gratitude to the inhabitants of the city. From the city came, among others: Erasmus Chiotho – builder of the first permanent bridge in Warsaw (was created in the years 1569-73), Andrzej Noskowski, Bishop of Płock (1492-1567) – operating at the court of the last Mazovian princes, Janusz and Stanisław, and Capuchin Bernard Gratowski (XIX w.) – cartographer.
Rectangular market square with "cobblestones" being the center of the town foundation. In the center, the exposed St. 1965 r. a monument in the form of years in honor of the insurgents of 1831, 1863 and those who died in time
World War II. The coats of arms of Mazovia and Zakroczym as well as the reverse and obverse of the "Star of Zakroczym" are placed on the lighthouse shafts.
The Gothic-Renaissance church of. Exaltation of the Holy Cross, built in the 16th-17th centuries. in place of the earlier one, probably from the 11th century. Three-aisle, a pseudo-basilica with two chapels and a presbytery equal in width to the nave, but higher than her. Made of brick with the use of field stones, cannonballs and a mill wheel, partially plastered, buttressed. On the sides of the façade, there are two turrets tapering upwards. Inside, in the main altar, a painting of the Mother of God with the Child with 1663 r., in the nave there is a plaque dedicated to St.. Stanisław Kostka – the starost of Zakroczym, in the southern chapel. the late Renaissance epitaph of the Chądzyński family from approx. 1608 r. topped with heraldic cartouches. A brick building next to the church, new belfry with an embedded plaque with 1608 r. with a Latin inscription on the Chądzyński family.