The relative major is determined by two steps: counting three half steps higher and writing as an enharmonic equivalent using the name of three white notes above. In this case, three half steps higher yields A#/Bb. Counting three notes higher gives B. Therefore the key signature is equivalent to that of B flat major.
The relative major to G minor is B-flat.
E Minor is the relative minor to G Major.
E Minor is the relative minor to G Major.
The relative minor to G Major is E minor.
The relative minor of E major is C# minor.
It's not a major, it's a minor. The relative minor of B major is G# minor.
E minor.
G# minor
E minor.
The relative key is the one with the same key signature. For C major, it's A minor.
The relative minor of a key signature is the key three semitones, and two letter names, below the major key in question. For example, the relative minor of A major is F# minor (three semitones, two letter names down). The relative minors of the correpsonding major keys are as follows: C - A minor Db - Bb minor D - B minor Eb - C minor E - C# minor F - D minor G# - Eb minor G - E minor Ab - F minor A - F# minor Bb - G minor B - G# minor
If I understand your question correctly: G minor has two flats, as does B flat major.
The relative major key of Gb minor is Bbb (double-flat). However to make life easier, one could just say the minor key is F# minor and then the relative major would be A.