House of Sena e Albuquerque

The House of Sena e Albuquerque, known in Karnia-Ruthenia as the House of Karácsony-Maryen-Saena, is a noble and royal family of kings, dukes and princes and ascended the proeminence within the Lusophone sector of micronationalism back in 2015 an exercising immense influence by the foundation of the Brazilian sector on 2020.

Principal roles
Their principal roles, including the roles of their cadet branches were as: Numerous other titles were attached to the crowns listed above.
 * King of Quinta Velha (2018 - present);
 * Duke of Saena (2021 - present);
 * Prince of Karácsony-Maryen (2021 - present);
 * Prince of Maryen (2017 - 2018);
 * Crown Prince of Brigantia and Afrikanda (2015 - present);
 * Prince of Karácsony-Maryen (2018 - present).

De Sena
The origins of the Sena family of Quinta Velha date back to the 14th century, when Giovanni de Sena commanded part of the troops of Martin I, the Younger, in the Battle of Sanluri, in 1409, which guaranteed the conquest of Sardinia by the Aragonese-Sicilian forces. Very close and enjoying a good relationship with the Aragonese and Sicily kings, it is a fact that both Ferdinand I and Alfonso V used him as their own representative in Sardinia with the task of establishing agreements with the owners of the places. That should pass into the ownership of the real state. In 1421, he was invited to participate in the first Sardinian Parliament that sanctioned, in a way, the occupation of the entire island. For the important services rendered to the crown, he received the fiefs of Laconi, Genoni, Nuragus and Nurallao in Parte Valenza and Decimo in Campidano. On 20 March 1427, Alfonso V confirmed the purchase of the important village of Sanluri and that of Donigalla in Ogliastra. On 8 July 1436, he was elevated to the dignity of Viscount of Sanluri with a royal diploma sent from Taranto. On 20 July 1436, he acquired the fiefs of campidanesas of Quartucciu, Pirri, San Vetrano, Flumini and Cepola (incorporated by Quarto Donico), forming the Barony of Quarto (from the name of the city now called Quartu Sant'Elena); and, from the Aragonese tax office, he acquired the fiefs of Ghilarza, Abbasanta and Aidomaggiore in Parte Guilcier. Like Giovanni, his son Antonio de Sena had great prestige with the King and followed him through several battles and, for his services, he was authorized to acquire more fiefs and increase the Sena family's domains in Sardinia. Antonio de Sena died in 1470 in battle. During the following years the descendants of Giovanni and Antonio de Sena managed the family properties which, at one point, also included Castle of Sanluri. Between the 18th and 19th centuries, descendants of Antonio de Sena migrated to South America, settling in regions of Paraíba and in the interior of Rio Grande do Norte, extending the presence of the family in Brazil as well.

Albuquerque
The ancestry of the Albuquerque family of Quinta Velha is first related to Afonso Sanches, Lord of Albuquerque, illegitimate, firstborn and favorite son of King Denis of Portugal, later legitimized and a pretender to the Portuguese throne. His son, João Afonso de Albuquerque, was 6th Lord of Albuquerque and very present in the reign of King Peter of Castile, having participated in the education of the young Infante and becoming one of the most influential men of the young Peter's reign. Later, the King's relationship with Albuquerque deteriorated due to differences of opinion on court matters and also because João Afonso allied with Henry II of Castile against King Peter. João's son Fernando Afonso de Albuquerque served as plenipotentiary of John I of Portugal in England, participating in the signing of the Treaty of Windsor. With an Englishwoman named Laura he had several children. Part of his descendants migrated to the Colony of Brazil, settling in the region of Pernambuco. Later, they migrated to Rio Grande do Norte, settling in the cities of Extremoz, Natal, Ceará-Mirim and São Gonçalo do Amarante. In 2018, Brazilian micronationalist Thomas Albuquerque founded the Senhorio das Terras de Santa Rita de Cássia, with the aim of rescuing the Portuguese and Italian influences of his family. Later, the Lordship was elevated to the Kingdom of Quinta Velha and became one of the most important Brazilian micronations in Latin America.