Pandionius
Could not find Pandioniis in Logeion dictionaries.
Pandioniis Proper-name adjective: masculine ablative plural, Proper-name adjective: feminine dative plural, Proper-name adjective: neuter ablative plural, Proper-name adjective: neuter dative plural, Proper-name adjective: masculine dative plural, Proper-name adjective: feminine ablative plural of Pandionius
Pandīŏnĭus, (16) a, um, de Pandion : Ov. M. 15, 430 ; Prop. 1, 20, 31 || dʼAthènes : Claud. 4 Cons. Hon. 506 ; Stat. Th. 2, 720 || Pandioniæ volucres Sen. Oct. 8, les oiseaux de Pandion [rossignol et hirondelle].