What is referred to by 'charles ingalls'?

What is referred to by 'charles i juan carlos'? What is associated with: charles i the last ruler of this dual monarchy laid down his crown in november 1918? What is referred to by 'charles i'? Based on the clue 'charles iii of spain made religious news by curbin...', what is the answer? Based on the clue 'charles ives concord is this type of work for pian...', what is the answer? Based on the clue 'charles ives named the fourth movement of his conc...', what is the answer? Based on the clue 'charles jennens wrote or rather assembled the libr...', what is the answer? Based on the clue 'charles jundt took over beauty salon of swank nyc ...', what is the answer?