The Order of Saint Isidore of Seville
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Rank & Insignia
| Rank | Post Nominal | Knight | Dame |
| Knight, Dame, or Chaplain of the Collar (Limited to 12) |
KCCStI DCCStI ChCCStI |
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| Knight, Dame, or Chaplain Grand Cross | KGCStI DGCStI ChGCStI |
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| Knight, Dame, or Chaplain Grand Officer | KGOStI DGOStI ChGOStI |
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| Knight, Dame, or Chaplain Commander | KCStI DCStI ChCStI |
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| Knight or Dame | KStI DStI |
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| Squire or Lady-in-Waiting ( Ages 18 through 20 years) |
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The Chaplain’s post nominal apply to those Ecclesiastical members who hold a specific appointment: Chaplain-General, Vice Chaplain-General, Priory Chaplain, or Commandery Chaplain.
Advancement in Rank is at the discretion of the Grand Magistery. Promotion is normally in recognition of specific service to the Order or work towards the Aims of the Order.
The Order also has
three grades of Order of Merit. This award is made at the discretion of
the Grand Magistery to both members and non-members of the Order.
| Order of Merit - OMStI | First Class | Second Class | Third Class |
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