This page shows what castles are activated and which guilds own them.

Castle ID Castle Guild
0 Neuschwanstein Supplies
1 Hohenschwangau Supplies
4 Rothenburg Council of Fourteen
5 Repherion Sacrosanct
7 Yesnelph Squad
12 Holy Shadow Aincrad
13 Sacred Altar Sin and Punishment
15 Kriemhild Squad
17 Fadhgridh Squad