July 8 (Eastern Orthodox liturgics) (English Wikipedia)

Rev. Sabine Baring-Gould (M.A.). "S. PROCOPIUS, M. (4TH CENT.)." In: The Lives of the Saints. Volume the Seventh: July - Part I. London: John C. Nimmo, 1898. pp. 184-187.
The Roman Martyrology. Transl. by the Archbishop of Baltimore. Last Edition, According to the Copy Printed at Rome in 1914. Revised Edition, with the Imprimatur of His Eminence Cardinal Gibbons. Baltimore: John Murphy Company, 1916. pp. 199-200.
Rev. Sabine Baring-Gould (M.A.). "SS. AQUILA AND PRISCILLA. (1ST CENT.)." In: The Lives of the Saints. Volume the Seventh: July - Part I. London: John C. Nimmo, 1898. pp. 182-183.
Rev. Sabine Baring-Gould (M.A.). "S. KILIAN, B.M. (A.D. 689.)." In: The Lives of the Saints. Volume the Seventh: July - Part I. London: John C. Nimmo, 1898. pp. 188-191.
Very Rev. John O'Hanlon. "ARTICLE I.—THE ACTS OF ST. KILIAN, APOSTLE OF FRANCONIA, MARTYR AND BISHOP, AS ALSO OF HIS COMPANIONS, ST. COLMAN, PRIEST, AND ST. TOTNAN, DEACON, MARTYRS. [SEVENTH CENTURY.]." In: Lives of the Irish Saints: With Special Festivals, and the Commemorations of Holy Persons. VOL. VII. Dublin, 1875. pp. 122-143.
Rev. Sabine Baring-Gould (M.A.). "S. LANDRADA, V. ABSS. (ABOUT A.D. 690.)." In: The Lives of the Saints. Volume the Seventh: July - Part I. London: John C. Nimmo, 1898. pp. 191-193.
Rev. Richard Stanton. A Menology of England and Wales, or, Brief Memorials of the Ancient British and English Saints Arranged According to the Calendar, Together with the Martyrs of the 16th and 17th Centuries. London: Burns & Oates, 1892. p. 325.
Rev. Sabine Baring-Gould (M.A.). "S. EDGAR, K.C. (A.D. 975.)." In: The Lives of the Saints. Volume the Seventh: July - Part I. London: John C. Nimmo, 1898. pp. 198-202.
Rev. Richard Stanton. A Menology of England and Wales, or, Brief Memorials of the Ancient British and English Saints Arranged According to the Calendar, Together with the Martyrs of the 16th and 17th Centuries. London: Burns & Oates, 1892. pp. 326-328.
Rev. Sabine Baring-Gould (M.A.). "S. GRIMBALD, AB. (A.D. 903.)." In: The Lives of the Saints. Volume the Seventh: July - Part I. London: John C. Nimmo, 1898. pp. 197-198.
Rev. Richard Stanton. A Menology of England and Wales, or, Brief Memorials of the Ancient British and English Saints Arranged According to the Calendar, Together with the Martyrs of the 16th and 17th Centuries. London: Burns & Oates, 1892. pp. 325-326.
Rev. Sabine Baring-Gould (M.A.). "S. SUNNIFA, V.M. (END OF 10TH CENT.)." In: The Lives of the Saints. Volume the Seventh: July - Part I. London: John C. Nimmo, 1898. pp. 195-197.
Very Rev. John O'Hanlon. "Article IV.—St. Summiva, Sunnifa, Sumniva, or Sunneva, an Irish Virgin, Patroness of Bergen, in Norway, and her Companions, Martyrs." In: Lives of the Irish Saints: With Special Festivals, and the Commemorations of Holy Persons. VOL. VII. Dublin, 1875. pp. 166-168.

ecclesia.gr

(in Greek) Συναξαριστής. 8 Ιουλίου. ECCLESIA.GR. (H ΕΚΚΛΗΣΙΑ ΤΗΣ ΕΛΛΑΔΟΣ).

holytrinityorthodox.com

July 21 / July 8. HOLY TRINITY RUSSIAN ORTHODOX CHURCH (A parish of the Patriarchate of Moscow).

johnsanidopoulos.com

Sanidopoulos, John. "Synaxis of All Military Saints". Retrieved 2020-07-08.

mospat.ru

(in Russian) 8 июля (ст.ст.) 21 июля 2014 (нов. ст.). Русская Православная Церковь Отдел внешних церковных связей. (DECR).

mountathos.org

On Mount Athos the Synaxis of All Military Saints is celebrated on May 24th, and there is a Divine Office composed for this feast.

oca.org

Martyr Epictetus the Presbyter at Halmyris. OCA - Lives of the Saints.
Greatmartyr Procopius of Caesarea, in Palestine. OCA - Lives of the Saints.
Royal Martyr Mirdat, King of Kartli. OCA - Lives of the Saints.
Righteous Procopius the Fool-For-Christ and Wonderworker of Ustya, Vologda. OCA - Lives of the Saints.
Venerable Theophilus the Myrrhgusher of Macedonia. OCA - Lives of the Saints.
Miracle of the Annunciation Icon of the Mother of God at Ustiug. OCA - Lives of the Saints.
Appearance of the Kazan Icon of the Mother of God. OCA - Lives of the Saints.
Icon of the Mother of God of Tambov. OCA - Lives of the Saints.
Icon of the Mother of God "Tenderness" in Novgorod. OCA - Lives of the Saints.
Icon of the Mother of God "Our Lady of Sitka". OCA - Lives of the Saints.

orthochristian.com

July 8/July 21. Orthodox Calendar (PRAVOSLAVIE.RU).

orthodoxengland.org.uk

July 8. Latin Saints of the Orthodox Patriarchate of Rome.

pravenc.ru

(in Russian) 21 июля (8 июля). Православная Энциклопедия под редакцией Патриарха Московского и всея Руси Кирилла (электронная версия). (Orthodox Encyclopedia - Pravenc.ru).
(in Russian) «БЛАГОВЕЩЕНИЕ УСТЮЖСКОЕ» ИКОНА БОЖИЕЙ МАТЕРИ. Православная Энциклопедия под редакцией Патриарха Московского и всея Руси Кирилла (электронная версия). (Orthodox Encyclopedia - Pravenc.ru).
(in Russian) КАЗАНСКАЯ ИКОНА БОЖИЕЙ МАТЕРИ. Православная Энциклопедия под редакцией Патриарха Московского и всея Руси Кирилла (электронная версия). (Orthodox Encyclopedia - Pravenc.ru).

saint.gr

(in Greek) Σύναξη πάντων των Στρατιωτικών Αγίων. Ορθόδοξος Συναξαριστής. 08/07/2020.

synaxarion.gr

Great Synaxaristes: (in Greek) Ὁ Ἅγιος Προκόπιος ὁ Μεγαλομάρτυρας. 8 ΙΟΥΛΙΟΥ. ΜΕΓΑΣ ΣΥΝΑΞΑΡΙΣΤΗΣ.
Great Synaxaristes: (in Greek) Ἡ Ἁγία Θεοδοσία ἡ Μάρτυς μητέρα τοῦ Ἁγίου Προκοπίου. 8 ΙΟΥΛΙΟΥ. ΜΕΓΑΣ ΣΥΝΑΞΑΡΙΣΤΗΣ.
Great Synaxaristes: (in Greek) Οἱ Ἅγιοι Ἀντίοχος καὶ Νικόστρατος οἱ Τριβούνιοι. 8 ΙΟΥΛΙΟΥ. ΜΕΓΑΣ ΣΥΝΑΞΑΡΙΣΤΗΣ.
Great Synaxaristes: (in Greek) Οἱ Ἅγιοι Ἄβδας (ἢ Αὐδᾶς) καὶ Σάββας οἱ Μάρτυρες. 8 ΙΟΥΛΙΟΥ. ΜΕΓΑΣ ΣΥΝΑΞΑΡΙΣΤΗΣ.
Great Synaxaristes: (in Greek) Οἱ Ἁγίες 12 Γυναῖκες Συγκλητικὲς. 8 ΙΟΥΛΙΟΥ. ΜΕΓΑΣ ΣΥΝΑΞΑΡΙΣΤΗΣ.
Great Synaxaristes: (in Greek) Ὁ Ἅγιος Προκόπιος ὁ διὰ Χριστὸν Σαλός ὁ ἐν Οὐστούζῃ, ὁ θαυματουργὸς. 8 ΙΟΥΛΙΟΥ. ΜΕΓΑΣ ΣΥΝΑΞΑΡΙΣΤΗΣ.
Great Synaxaristes: (in Greek) Ὁ Ὅσιος Θεόφιλος ὁ Ἀθωνίτης. 8 ΙΟΥΛΙΟΥ. ΜΕΓΑΣ ΣΥΝΑΞΑΡΙΣΤΗΣ.
Great Synaxaristes: (in Greek) Ὁ Ἅγιος Προκόπιος ὁ διὰ Χριστὸν Σαλός ἐν Οὔσια Βόλογκντα (Ρῶσος). 8 ΙΟΥΛΙΟΥ. ΜΕΓΑΣ ΣΥΝΑΞΑΡΙΣΤΗΣ.
Great Synaxaristes: (in Greek) Ὁ Ἅγιος Ἀναστάσιος ὁ νέος Ἱερομάρτυρας. 8 ΙΟΥΛΙΟΥ. ΜΕΓΑΣ ΣΥΝΑΞΑΡΙΣΤΗΣ.

tyoos.org

July 8. The Year of Our Salvation - Holy Transfiguration Monastery, Brookline, Massachusetts.

wikipedia.org

ru.wikipedia.org

See: (in Russian) Прокопий Устьянский. Википедии. (Russian Wikipedia).
See: (in Russian) Прокопий (Титов). Википедии. (Russian Wikipedia).
See: (in Russian) Песчанская икона Божией Матери. Википедии. (Russian Wikipedia).

it.wikipedia.org

See also: (in Italian) Apollonio di Benevento. Wikipedia. (Italian Wikipedia).