Question: What is Dave Coskunian and Constantine Orbelian's common descent?

Context paragraphs:
I Met You, My Love: I Met You, My Love is a 2002 album of 'Old Russian Romances', light-classical Russian songs by baritone Dmitri Hvorostovsky in arrangements for the recording by Evgeny Stetsyuk, with Moscow Chamber Orchestra, and Russian folk ensemble Style of Five, directed Constantine Orbelian.  It is Hvorostovsky's only commercial recording of the popular salon songs he sometimes uses as encores in recitals in Russia.  The album was very popular in Russia, but was generally not well received in the western classical press.  The Gramophone's reviewer noted that the expertise of the singer could not elevate most of the songs to the Russian art song repertoire.

Lineage (anthropology): A lineage is a unilineal descent group that can demonstrate their common descent from a known apical ancestor.  Unilineal lineages can be matrilineal or patrilineal, depending on whether they are traced through mothers or fathers, respectively.  Whether matrilineal or patrilineal descent is considered most significant differs from culture to culture.

Constantine Orbelian: Constantine Garrievich Orbelian, Jr. (Armenian: Կոնստանտին Օրբելյան , Russian: Константин Гарриевич Орбелян , born San Francisco, 27 August 1956) is an American conductor and pianist of Armenian and Russian descent.  He is named after his paternal uncle Konstantin Orbelyan, a major Armenian composer.

Erich Wasmann: Erich Wasmann (29 May 1859 − 27 February 1931) was an Austrian (born in South Tyrol) entomologist, specializing in ants and termites, and Jesuit priest.  He described the phenomenon known as Wasmannian mimicry.  Wasmann was a supporter of evolution, although he did not accept the productivity of natural selection, the evolution of humans from other animals, or universal common descent of all life.  Rather, he believed that common ancestry was restricted to what he called "natural species" which were generally larger groups than species (which he called "systematic species"), genera, or even families.  His natural species he identified with the "paleontological species" of Melchior Neumayr.  Wasmann also was involved in a long-running dispute with Ernst Haeckel over Monism.  His father was the painter Friedrich Wasmann.

Where Are You My Brothers?: Where are You, my Brothers?  is a 2003 album of Russian-language songs from World War II recorded by baritone Dmitry Hvorostovsky and conductor Constantine Orbelian for Delos Productions.  The album was released in Russia as "Songs of the War Years" (Песни военных лет).  It was based on a concert at the Kremlin Palace in Moscow.  A video of the concert and 13 of the songs was released on the American VAI label.  The repertoire of the concert is the very core of the Russian war song genre and the sound and video releases were accompanied by booklet essays and sung texts and translations.

Common descent: Common descent describes how, in evolutionary biology, a group of organisms share a most recent common ancestor.  There is evidence of common descent that all life on Earth is descended from the last universal common ancestor (LUCA).  In July 2016, scientists reported identifying a set of 355 genes from the LUCA of all organisms living on Earth.

Evidence of common descent: Evidence of common descent of living organisms has been discovered by scientists researching in a variety of disciplines over many decades, demonstrating the common descent of all life on Earth developing from a last universal common ancestor.  This evidence constructs the theoretical framework on which evolutionary theory rests, demonstrates that evolution does occur, and is able to show the natural processes that led to the emergence of Earth's biodiversity.  Additionally, this evidence supports the modern evolutionary synthesis—the current scientific theory that explains how and why life changes over time.  Evolutionary biologists document evidence of common descent by developing testable predictions, testing hypotheses, and constructing theories that illustrate and describe its causes.

Last universal common ancestor: The last universal common ancestor (LUCA), also called the last universal ancestor (LUA), cenancestor, or (incorrectly) progenote, is the most recent population of organisms from which all organisms now living on Earth have a common descent.  LUCA is the most recent common ancestor of all current life on Earth.  LUCA should not be assumed to be the first living organism on Earth.  The LUCA is estimated to have lived some 3.5 to 3.8 billion years ago (sometime in the Paleoarchean era).  The composition of the LUCA is not directly accessible as a fossil, but can be studied by comparing the genomes of its descendents, organisms living today.  By this means, a 2016 study identified a set of 355 genes inferred to have been present in the LUCA.

Devlin (surname): O'Devlin (Irish: Ó Doibhilin ) is the surname of a Gaelic Irish family of the Uí Néill who were chiefs in the far northeastern of the present-day County of Tyrone, bordering on Lough Neagh and the Ballinderry River.  The O'Develins claimed a common descent from Develin (in Irish: "Dobhuilen" or "Raging Valour", an Irish noble of the royal blood of Aileach who flourished in or about the eighth century AD and was eighth in descent from Owen, the founder of the clan).  Develin was a scion of that branch of the clan Owen known as the Sons of Erca ("Cenel Mic Erca") because of their descent from Muirchertach Mac Erca, grandson of Owen.

Dave Coskunian: Davit “Dave Coskunian” Çoşkun was a Turkish-American soccer player of Armenian descent who earned three caps with the U.S. national team.  He played one season in the National Professional Soccer League and one in the North American Soccer League.

Supporting paragraphs: Dave Coskunian Constantine Orbelian
Answer: Armenian