Marian Church of Agrana y Griegro

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 * name               = Marian Church of Agrana y Griegro
 * native_name        = Santíssima Iglesia Mariana de Agrana y Griegro
 * native_name_lang   = {{wpl|Spanish|Tiberico}}
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 * theology           = {{nowrap|{{hlist|{{wpl|Marian devotions|Marian}}|{{wpl|Mary Magdalene|Magdalan}}|{{wpl|Trinity|Trinitarianism}}}}}}
 * polity             = {{wpl|Episcopal}}
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 * leader_title       = Summa Praefecta
 * leader_name        = Queen Isabella II
 * leader_title1      = Prima Inter Pares
 * leader_name1       = Paola Torres y Castillo
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 * associations       = Marian Communion
 * area               = Agrana y Griegro
 * language           = {{plainlist|Spanish|Tiberico|Latin|Old Callindrian}
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 * headquarters       = Cathedral of Saint Mary, Monte Real, Agrana y Griegro
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 * founder            = {{wpl|Mary Magdalene|Mary of Magdala}} (according to Apostolic tradition)
 * founded_date       = 1st century
 * founded_place      = Old City, North Kesh
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 * members            = 74 million
 * ministers_type     = Clergy
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The Most Holy Marian Church of Agrana y Griegro is a Christian church and the established church of The United Kingdom of Agrana y Griegro. Although the monarch is, by law and tradition, Summa Praefecta (eng. supreme governor) of the Church, the Bishop of Calindria is the senior cleric. Its central administration is located in the city of Monte Real.

Marian theology is based upon the Gloria Mariana. It teaches that it is the One, Holy, Catholic and Apostolic church founded by Jesus Christ and carried over by Mary of Magdala following his ascension, and that its bishops are the successors of Christ's apostles.

The Marian Church of Agrana y Griegro belongs to the Marian Communion, which also includes the Tiperyn First Apostolic Church, being the second largest church within the communion. The relationship between the two churches has heavily influenced the geo-political relations between Tiperyn and Agrana y Griegro over the centuries, ranging from a feeling of kinship to occasional periods of bitter rivalries.

Doctrine and practice
The canon law of the Marian Church identifies the Christian scriptures as the source of its doctrine. In addition, doctrine is also derived from the teachings of early theologians and ecumenical councils in so far as these agree with scripture. This doctrine is expressed in the Gloria Mariana, the Book of Common Prayer and the Lex Ecclesiae.

The Role of the Virgin Mary
The worship of the Virgin Mary is a central part of the Marian faith, with the Holy Trinity being described as the combination of the Mother, the Son and the Holy Spirit.

This is likely a development from the pre-Christian belief of the sanctity of the woman as the only one capable of creating life. Saint xxx of Padua noted in his writings that "just as man - created by God in his image - can not create life from his seed alone, God himself could not have brought forth his Son without a Saintly Mother", thus elevating the sacred feminine - represented in canon by the Virgin Mary - to a status of near godliness. This is compounded by the Gospel of xx, in which it is said that divine grace surrounded Mary from birth and, as a young woman, she received a message from God through te archangel Gabriel, stating that God had chosen her, purified her, and had preferred her above all "the women of the worlds". This event, according to the same narrative, was followed by the annunciation of a child who was to be miraculously conceived by her through the intervention of the Holy Spirit while she was still virgin, whose name would be Jesus and who would be the "anointed one," the Promised Messiah.

Saint yy went further, arguing that "just as God could not have touched the realms of men without Mary, so too man cannot accede to the realms of Heaven but through Her", the Queen of Mercy, who holds the power of forgiveness.

Saint Mary of Magdala
The doctrine of the Marian Church, such as that of the Tiperyn First Apostolic Church, calls Saint Mary of Magdala the First Apostle and she is revered as one of the most important figures in the establishment of the Church, as narrated in the Gospel of Nathaniel. She is said to have lead the first disciples of Jesus out of the Old City to spread his message north, travelling through the mouth of the Iapetus, between modern day Agrana y Griegro and Jungastia. According to the Marian Church the settlement of Calindria and the country in general is attributed to direct descendants of Mary of Magdala. Saint Mary of Calindria, the historical founder of The United Kingdom, is said to have had frequent visions of Saint Mary of Magdala in her quest to lead the Reconquista, and the Christian victory is attributed by the Church directly to this connection with the founder of the Church.