It was fixed quickly, so it wasn't as big a deal as these things can sometimes be, but you couldn't have caused the temporary separation. You were the vassal who was swearing around folks. The only way for someone to lose their monarchy affiliation is if they are released by their patron, thus breaking the tie to the monarch. Sometimes that can't be avoided and sometimes it can. I was on allegiance chat telling both you and Garnet to go, meet, get sworn,... Things happen sometimes, and for this time, Garnet must have released Illumination to make room for you.
No worries, it was just Kerosene (Illumination) and that Panzerfaust guy (Trouser Snake) who got cut out of the monarchy.
Just a tip for other chainers though: Try not to remove someone in the chain who has the Boot command available at his fingertips! (Sorry Garnet, couldn't resist.

)
Thank you all for getting the sweararound done quickly.