The Lord of the Green Dragons
Demon Queen of Fungi
According to Quij, Robilar had obtained an orb of clerics during his travels. The last Quij heard of his whereabouts prior to his open call for his army to join him in the Bright Desert, he was toward the Empire of Lynn to return the orb to a temple of Zuggmtoy somewhere in Western Oerik.
From The World of Greyhawk, circa 576 CY, page 71:
The demigod Iuz is rumored to have a soul object secreted on the Abyssal Plane dominated by the demoness Zugg(m)toy, with whom he is known to consort.
From Demonomicon volume IV (found in the Durst’s ‘Death House’):
To be determined upon inspection