The Holy See is the head of the Roman Catholic church, including the Pope. It is recognized as having legal personality under international law.
The Holy See is legally distinguishable from the Vatican City, which is a territory over which the Holy See has sovereignty: some treaties the Holy See is a party to in itself, other treaties it is a party to in respect of the Vatican City.
However, the foreign embassies are credited to the Holy See and not to the Vatican State.
Generally, the Holy See as a party to a treaty reflects the interests of the Roman Catholic church, while Vatican City is generally only party to treaties which are not of general significance, e.g., treaties regarding co-operation with Italy.
Apart from Rome the episcopal see of Mainz is also called a holy see.
Common misspelling and questions (FAQ)
oly-see hly-see hoy-see hol-see holysee holy-ee holy-se holy-se ohly-see hloy-see hoyl-see hol-ysee holys-ee holy-ese holy-see holy-se hholy-see hooly-see holly-see holyy-see holy--see holy-ssee holy-seee holy-seee yoly-see goly-see boly-see uoly-see noly-see uoly-see joly-see noly-see h9ly-see hily-see hkly-see h0ly-see hlly-see h0ly-see hply-see hlly-see hooy-see hoky-see ho,y-see hopy-see ho.y-see hopy-see ho;y-see ho.y-see hol6-see holt-see holg-see hol7-see holh-see hol7-see holu-see holh-see holy0see holypsee holy[see holy-wee holy-aee holy-zee holy-eee holy-xee holy-eee holy-dee holy-xee holy-s3e holy-swe holy-sse holy-s4e holy-sde holy-s4e holy-sre holy-sde holy-se3 holy-sew holy-ses holy-se4 holy-sed holy-se4 holy-ser holy-sed holy-seesActs of trade--Power of taxation--Colonial right of Acts of trade--Magna Charta. To the Governor of Massachusetts, April 10th . . . Assembly--Power of Governor over sessions. Article signed "Vindex," April 20th . . . Answer of the House of Representatives--Repair of Province House. Article signed "Valerius Poplicola," October 5th . . . Family affairs--Royal power over colonial government. To Elbridge Gerry, October 27th . . . Independence of judges--Action of Boston. To Arthur Lee, November 3d . . . judges--Action of Boston. To Elbridge Gerry, November 5th . . . Activity in Marblehead--Rights as Christians--Attitude of Roxbury and November 20th . . . A List of Violations of Rights, November 20th . . . A Letter of Correspondence, November 20th . . . Article Signed "Vindex," November 30th . . . Proceedings of Boston--Activity of public enemies--Action of Roxbury Acknowledgment. To William Checkly, December 14th . . . Criticism of Draper's Gazette--Proceedings of Boston . . . To Elbridge Gerry, December 23d . . . Response to request for advice--The Rhode Island commission--Effect on Acknowledgment of Boston committee for their endorsement. .