Gregory IX Biography

Historical biography and chronological timeline for Gregory IX, based on 13 World History Database records associated with Italy.

13 records1209–124112 events3 places

Chronological biography

1209

Franciscans1209

Religion / Roman Catholic Church · Pope · Assisi

Innocent III appoints the future Pope Gregory IX protector of the Franciscans

1227

Pope1227

Religion / Roman Catholic Church · Pope · Vatican

Appointed Pope

1228

Invasion of Empire1228

Warfare / Empire-Papacy War · Pope

Pope Gregory IX invades the lands of Frederick II, the "non-cxhristian" king

1229

Excommunication29 October 1229

Warfare / Holy Crusades, 6th · Pope · Vatican

Frederick II is excommunicated by the Pope Gregory IX

1231

Rule of Prussia1231

Warfare / Empire-Papacy War · Pope

Pope Gregory IX takes control of Prussia & leases it to the Teutonic Knights

Teutonic Knights1231

Warfare / Empire-Papacy War · Pope

Pope Gregory IX takes control of Prussia & leases it to the Teutonic Knights

1233

Inquisition1233

Religion / Roman Catholic Church · Pope

Orders the Dominicans in France to undertake the inquisition for heresy

1239

Declaration of War1239

Warfare / Empire-Papacy War · Pope

Gregory IX declares a Crusade against Frederick II

Excommunication1239

Warfare / Empire-Papacy War · Pope

Frederick II is excommunicated

1241

Invasion of Rome1241

Warfare / Empire-Papacy War · Pope

Frederick II advances on Rome

Siege of Genoa1241

Warfare / Empire-Papacy War · Pope · Genoa

Frederick II captures a large delegationof French prelates off Genoa

Synod1241

Warfare / Empire-Papacy War · Pope

Calls a Synod to depose Frederick II

Death of Gregory IX22 August 1241

Religion / Roman Catholic Church · Pope · Vatican

Death of Pope Gregory IX, age 94

Titles and roles

Pope

Record provenance

This biography is assembled from World History Database records filtered by country and personal-name fields. Exact duplicate display records are removed. The database is an index rather than a complete narrative biography; formal research should verify entries against relevant primary or specialist sources.