table: [['heir', 'status', 'relationship to monarch', 'became heir', 'reason', 'ceased to be heir', 'monarch'], ['robert curthose', 'heir presumptive', 'son', '1066', 'father became king', '1077', 'william i'], ['succession unclear 1077 - 1087', 'succession unclear 1077 - 1087', 'succession unclear 1077 - 1087', 'succession unclear 1077 - 1087', 'succession unclear 1077 - 1087', 'succession unclear 1077 - 1087', 'william i'], ['robert curthose', 'heir presumptive', 'elder brother', '1087', 'by agreement', '1088', 'william ii'], ['henry beauclerc', 'heir presumptive', 'younger brother', '1088', "robert 's rebellion", '2 august 1100', 'william ii'], ['succession unclear 1100 - 1103', 'succession unclear 1100 - 1103', 'succession unclear 1100 - 1103', 'succession unclear 1100 - 1103', 'succession unclear 1100 - 1103', 'succession unclear 1100 - 1103', 'henry i'], ['william adelin', 'heir apparent', 'only son', '1103', 'born', '25 november 1120', 'henry i'], ['empress matilda', 'heiress presumptive', 'only child', '25 november 1120 proclaimed 1127', 'brother died', '1 december 1135 (22 december 1135)', 'henry i']]
ref: Henry Beauclerc Ceased To Be Heir on 2 August 1100 , followed by William Adelin 20 year later
template: [ENT] [ENT] on [ENT] , followed by [ENT] 20 year later