I had never heard of this:
Discussion
It got so bad with the Vikings (Normans), they gave them Normandy (North Man Land) made a Norman a Duke
Then the Normans invaded England, conquered most of it, established their Monarchs, then told the French king they weren’t vassals any more.
There's an episode about it in the "vikings" series, season 3. (checking it, the siege actually lasts for 3 episodes, 8 to 10).
You never watched Vikings?
https://m.imdb.com/title/tt2306299/?ref_=nv_sr_srsg_0_tt_6_nm_2_in_0_q_Vikings%2520
me neither until the low-budget vikings series which was built around ragnar https://www.imdb.com/title/tt2306299/