Launa vulgo Laun Bohemiae Civitas / Schlanium vulgo Schlani Bohemiae oppidum.

This view of Louny is from the southeast from a slightly elevated viewpoint shows the well-fortified north Bohemian town situated close to the River Ohre (F).
Louny is dominated by three large buildings: the gatetower on the right, the church of St Nicholas (E) with its 14th-century bell tower and late Gothic nave that was rebuilt by Benedikt Ried from 1520 to 1538 after the town was destroyed by fire, and the town hall (C) between these two buildings. Located at a junction of trade routes, Louny was first recorded in the 11th century. It became a stronghold of the Taborites, a radical wing of the Hussites, who sought to build the Kingdom of God by armed force.

The town of Schlanium is presented from the north from a slightly elevated position. It is dominated by the hill from which it takes its name, which can be seen on the left, and to the left of that church of the holy Trinity. The tower of the town hall stands out clearly in the middle.
Slany Hill was settled in Neolithic times, and the salt springs that were discovered here in the 8th century led to the foundation of the town around 1300. In the following centuries it was granted many privileges and developed into an important commercial center.

Read more about the Civitates Orbis.

Reference: Taschen B & H p.463