This study investigates the persistence of social stratification based on noble titles within the Sasak community of Pengembur Village, Central Lombok, in the context of significant modernisation. Noble titles such as Lalu and Baiq have historically served not only as indicators of genealogical lineage but also as key determinants of social structure, interaction patterns, and societal norms. Over time, with rising educational standards and evolving economic orientations, the meaning and function of these noble titles have transformed. The aim of this research is to describe the current forms of traditional social stratification and to analyse the impact of modernisation on their structure and function. Employing a descriptive qualitative methodology, data were collected through participant observation, in-depth interviews with customary (adat) leaders and community members, and documentation. The findings reveal that social stratification in Pengembur Village comprises three main strata: ninggrat (nobility), pranguase (middle class), and jajar karang (commoners). Noble titles remain significant as markers of cultural identity, influencing linguistic etiquette (base krame) and customary practices such as the Sorong Serah Aji Krame. However, modernisation has shifted the criteria for social status from ascribed (innate) to achieved (attained through education and economic success). As a result, social stratification in the Sasak community has become more inclusive and fluid, with vertical social relations giving way to more egalitarian horizontal interactions, while still retaining the moral values associated with nobility.