Some grammer question!

[Anonymous]

"Existing more in legand than (factually), king Arthur was supposed~"

In this sentence, factually should be fact. The question is
I think it can be IN FACT, and IN is omitted because it used right
before IN LEGEND.
But some say after THAN, you use noun form, therefore
FACT is correct.
Is this right?

 

[Casiopea]

"Existing more in legand than (factually), king Arthur was supposed~"

In this sentence, factually should be fact. The question is
I think it can be IN FACT, and IN is omitted because it used right
before IN LEGEND.
But some say after THAN, you use noun form, therefore
FACT is correct.
Is this right?

1. Existing more in legend than in reality.... (OK)

2. Existing more in legend than (existing) factually.... (OK)

 

[MikeNewYork]

"Existing more in legand than (factually), king Arthur was supposed~"

In this sentence, factually should be fact. The question is
I think it can be IN FACT, and IN is omitted because it used right
before IN LEGEND.
But some say after THAN, you use noun form, therefore
FACT is correct.
Is this right?

I would use "Existing more in legend than (in) fact/reality...."

This is an issue of parallelism in comparisons. IMO, it is clumsy to mix a prepositional phrase (in legend) with an adverb (factually) in a comparison. In most cases, "more A than B" should use similar forms for A and B.