In 1873, v Carl Georg Friedrich Heyer von Rosenfeld wrote in the book “Der Adel des Königreichs Dalmatien nach archivalischen und anderen authentischen Quellen” describing the Coat of Arms of the Markovic (denoted as Markowiz) family, who were Counts of Spizza (Spiç), the Albanian coastal city.

Cited:

“Emperor Frederick II is said to have already granted the family the titles of Knight and Count in 1189, which Emperor Charles V specifically confirmed for the Dalmatian nobleman Stefan Marcovich, Count of Spizza, on October 6, 1541, in recognition of his personal merits in the campaign against the Barbary.

The Venetian Colonel Nikolaus Marcovich, whose ancestors came to Istria from Budua in 1612 and were formerly called Counts of Spizza, received the title of Count for himself and his descendants from the Venetian Senate on December 23, 1728, in recognition of his personal merits and his ancient nobility. In the records of the Imperial and Royal Nobility Archives in Vienna, there is no coat of arms listed for these latter diplomas, and it seems to me that the same will be described as follows: [Coat of arms diploma d.] d 8 December 1643:

“Quartered 1 and 4 is divided horizontally from S over R and each square contains a fleur-de-lis of counterchanged colors. In 2 and 3, divided diagonally from G to the left, on a green triple mount, stands a crowned griffin of counterchanged colors, facing inwards, brandishing a g-handled gleaming saber with its right claw. Crest: Two crowned helmets. From the 1 emerges, between an open flight quartered from S and R, on which a fleur-de-lis of counterchanged colors is placed in the center on both sides, a forward-facing Unger man in clothing quartered from R and S, whose head is covered by a low, upturned, entirely red cap with a white heron plume, who has his left hand on his hip and with his right holds before him, on an outwardly inclined, s-pointed brown staff, a two-pointed r pennant crossed with s crosses. 2 Bears a from G over A griffin, divided diagonally to the left, with a curved saber in its right claw, whose crowned head is surrounded by a halo.”

Potential Albanian heritage

Considering the centuries long Albanian heritage of Spic (Spizza), it is there plausible that the Markovic family was in fact a slavization of the Albanian Markaj.

Using the description of this document, I have generated a Coat of Arms with AI.

Source

Der Adel des Königreichs Dalmatien nach archivalischen und anderen authentischen Quellen, Carl Georg Friedrich Heyer von Rosenfeld, 1873. https://www.google.se/books/edition/Der_Adel_des_K%C3%B6nigreichs_Dalmatien_nach/mifi_-e3F6AC?hl=sv&gbpv=1