Did besiegers ever come up through the latrine?

Question

About seven minuets into this video he explains about the latrine in the castle and how it would be blocked up during a siege to keep people out. Is the historian correct in saying this? I was wondering if this was just a logical precaution, or whether they were adapting to data from previous castles and sieges. I wouldn't imagine that it would be any easier or effective than trying to take a ladder to the battlements, (especially when the latrine over hangs the river) unless they managed to do it without the defenders noticing.

Are there historic references to people breaking into a castle by coming up through the latrine?

Answer 1

Short answer: Yes.

One example:

The protruding shaft of masonry that made up the toilet was buttressed from below or might nestle in the junction between a tower and wall. Some waste shafts were short while others reached almost to the ground. In the latter case, that might prove a dangerous design feature if there were a siege of the castle. Indeed, besiegers used just such a latrine shaft in 1203-4 CE to gain entry to Chateau Gaillard on the River Seine in France, built by Richard I (r. 1189-99 CE) at the end of the 12th century CE. After the siege, to ensure no repeat of the trick, a masonry wall was built around the shaft exit.

https://www.worldhistory.org/article/1239/toilets-in-a-medieval-castle/