Righteous Kaisarios, physician, brother of Saint Gregory the Theologian.
St. Kaisarios was the younger brother of St. Gregory the Theologian, born in Cappadocia in the fourth century. Educated in Alexandria, he became a distinguished physician and served at the imperial court in Constantinople, keeping his Christian faith even under Julian the Apostate.
He survived a great earthquake at Nicaea and, moved by this deliverance, devoted himself wholly to God, but reposed soon after. St. Gregory delivered his funeral oration. The Church keeps his memory on March 9.
Feast day
On the New Calendar, Kaisarios the Physician is commemorated on March 9. Churches on the Old (Julian) Calendar keep the feast on March 22 of the civil calendar.
Who celebrates a name day
People with these names keep their name day on this feast:
Kaisarios, Kesarios, Caesarius, Caesar
Also commemorated on March 9

Forty Holy Martyrs of Sebaste
Martyr, Σαράντα Μάρτυρες
The Forty Holy Martyrs who froze in the lake of Sebaste.
Name days: Sarantis
Ourpasianos
Martyr, Ουρπασιανός
Holy Martyr Ourpasianos of Nicomedia, burned in an iron cage.
Name days: Ourpasianos
Six Martyrs of One Family
Saint, Μάρτυρες μιας οικογενείας
Holy Martyrs, a grandfather, grandmother, father, mother and their two children.