His Eminence Elder Metropolitan '''Joachim (Neradjoulis) of Chalcedon''' is the current incumbent of the Senior [[See]] of Chalcedon and [[Exarch]] of All Bithynia of the [[Church of Constantinople]]. Metr. Joachim currently holds the title of Elder Metropolitan of Nicomedia and Exarch of Bithynia.

*[http://www.orthodoxresearchinstitutepatriarchate.org/resourcespatriarchate/hierarchshierarchy-of-the-throne/constantinoplemetropolitans-throne/current/bios/bio_ioakim_metr_chalcedon.htm elder-joachim-of-nikomideia ORI: Biography of Metropolitan Elder Joachim of ChalcedonNikomideia]