March 2007 page 12
E. Th. Theodossiou
A. Dakanalis

The vertical sundial of the Church of the Dormition of the Virgin at Agia Trias in the Argive Plain

This paper describes a significant, well-preserved medieval Byzantine vertical sundial found at the Church of the Dormition of the Virgin in Agia Trias, Greece. It explores the dial's historical context, its connection to William of Moerbeke's translation of Ptolemy, and its design featuring Greek capital letters for hour lines. The authors also discuss its construction and possible dating.
Dials: Vertical, Historical Dials, Sundial Design & Layout

March 2004 page 18
E. Th. Theodossiou
A. Dakanalis

The Vertical Sundial of Hossios Loukas Convent

This article details the discovery of a previously undocumented vertical sundial at the Hossios Loukas Convent in Greece, a significant Byzantine monument. The simple, scratched dial on the Church of the Theotocos wall, featuring Indo-Arabic numerals, is noted as a rare example of sundials on Byzantine buildings in Greece, with its construction date unknown but post-13th century.
Dials: Vertical, Historical Dials