user: Question: Which Monarch has Succession unclear 1100-1103 as his Status?
Columns: ['Heir', 'Status', 'Relationship to Monarch', 'Became heir', 'Reason', 'Ceased to be heir', 'Monarch']
Types: ['text', 'text', 'text', 'text', 'text', 'text', 'text']
Sample row: ['Robert Curthose', 'Heir presumptive', 'Son', '1066', 'father became king', '1077', 'William I']
SQL:

assistant: SELECT "Monarch" FROM "Table" WHERE "Status" = 'Succession unclear 1100-1103';