Thread:DQueenie13/@comment-5004454-20141223033337/@comment-918376-20141223033957

In the light novel, his guild didn't disband, it's just that they lost their power after having their arses kicked by Shiroe's party. Tetra mentions them when she's talking about Demiqas' wife, saying that his men were jealous of him (for having a wife who would cook).

It also seems as though Elder Tale allowed one-member guilds, considering that K.R., in the anime, had his guild as "Team for K.R. All Alone" while he was in the Tea Party. Even if Brigandia had disbanded, it would probably just be that others deserted him, but he remained as the sole member and guild master.