Ada van Holland used the keep as a residence until her father died in 1203 and she was captured by her paternal uncle, William I.

Later in the 13th century the building was considered antiquated, since more and more townspeople and houses were built around the base of the hill, making defenses impossible without destroying most of the city.

The stained-glass windows number 25 & 26 in the Janskerk (Gouda) designed by the Leiden artist and councilman Isaac van Swanenburg glorify this history in 1601 by commemorating the latest siege (glass 25, paid for by the Delft city council and featuring William the Silent as liberator) with a comparison to the story of the Siege of Samaria (glass 26, paid for by the Leiden city council and featuring the text of the biblical story with God as savior).

[1] In this period a new portal on the keep wall was designed in 1662 with heraldric symbols by Rombout Verhulst, denoting the leading families of the city.

[3][4] There are two other gates to the Burcht, one at the base of the hill with wrought iron heraldric weapons, built in 1653, and one on the south side of the complex, which itself forms a gateway to the park.