Toledo was walled by Romans, and a lot of its stones were reused later in built walls, as the original perimeter was subsequently tripled. The Visigothic King Wamba renewed the Roman fortifications, sculpting in its gates an inscriptions. The inscriptions were destroyed by the Muslims, and restored in 1575 by the Corregidor Juan Gutiérrez Tello.
The Arabs widened the city and the walls. After the Reconquista, the walls were again advanced in outer line and new gates were constructed. The gates and towers of the Walls of Toledo have survived until these days.References:
First record of Kastelholma (or Kastelholm) castle is from the year 1388 in the contract of Queen Margaret I of Denmark, where a large portion of the inheritance of Bo Jonsson Grip was given to the queen. The heyday of the castle was in the 15th and 16th centuries when it was administrated by Danish and Swedish kings and stewards of the realms. Kastelhoma was expanded and enhanced several times.
In the end of 16th century castle was owned by the previous queen Catherine Jagellon (Stenbock), an enemy of the King of Sweden Eric XIV. King Eric conquered Kastelholma in 1599 and all defending officers were taken to Turku and executed. The castle was damaged under the siege and it took 30 years to renovate it.
In 1634 Åland was joined with the County of Åbo and Björneborg and Kastelholma lost its administrative status.