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Andy Seaman  FHEA ACIfA FSA

Dr Andy Seaman



Lecturer in Early Medieval Archaeology

School of History, Archaeology and Religion

Media commentator
Available for postgraduate supervision


Andy is a specialist in the archaeology of late antique and early medieval Western Britain. He is currently engaged in several research projects, with a particular focus on Wales and south-west England. An active field archaeologist, he has directed excavations on the Dinas Powys 'southern banks' and at Mount St Albans near Caerleon. He has recently started a new project investigating early medieval sites within the environs of Fonmon Castle. He has published widely on a range of topics and is currently working on a monograph on hillforts in early medieval western Britain.



  • Seaman, A., Morgan-James, R., Sinnott, S., Comeau, R. and Shiner, M. 2024. The Medieval period: Agriculture, assembly and burial. In: Guilbert, D., Morgan-Jones, R. and Sinnott, S. eds. A Journey Through 6000 years of History: Investigations along the A4226 Five Mile Lane Improvement Scheme. Red River Archaeology Group














Book sections



  • Seaman, A. 2023. Hillforts in Southern Britain: Power and Place in the Late Antique Landscape. Presented at: Congrès International d’Histoire et d’Archéologie, Roquebrune-sur-Argens, France, 19-25 October 2019Perchement et réalités fortifiées en Méditerranée et en Europe (Vème-Xème siècles) – Formes, rythmes, fonctions et acteurs. Archaeopress pp. 420-432.
  • Seaman, A. 2022. Late antique hillfort occupation in south Britain: chronology, context, and interpretation. Presented at: Intentions and Meaning: A comparative view of Late Antique Hilltop sites in Europe, Ljubljana, Slovenia, 22-24 September 2021 Presented at Pavlovič, D. and Heinrich-Tamáska, O. eds.Book of Abstracts - International Workshop - Intentions and Meaning: A comparative view of Late Antique Hilltop sites in Europe. National Museum of Slovenia pp. 21-23.



Andy's research interests include:

  • Late Antique and early medieval western Britain;
  • Hillforts and defended settlements;
  • Power and kingship;
  • Christianity and the early church;
  • Agriculture, landscape and economy;
  • The formation of the Welsh March.

Andy has a particular interest in landscape archaeology and multidisciplinary research. He has led numerous research projects, including the AHRC-funded Manifestations of the Empire, which uses high-resolution pollen analysis to explore continuities and changes in environment and land-use between the Roman and early medieval periods. He is currently PI on the Leverhulme-funded Making the March: Contesting Lands in the Early Medieval Frontier and CI on Hidden Kingdoms: The South West of Britain in Late Antiquity also funded by the Leverhulme Trust. He recently co-authored the latest archaeological research framework for is early medieval Wales, and is involved in several British and European research networks, including Late Antique Hilltop Settlements in Europe (LAHIS).


Andy is a Fellow of Advance HE. He teaches early medieval archaeology, coordinates fieldwork training and placements, and contributes to a range of other modules at both undergraduate and postgraduate level.


2022 - present: Lecturer in Early Medieval Archaeology, Cardiff University

2012 - 2022: Lecturer and then Senior Lecturer and Subject Lead in Archaeology, Canterbury Christ Church University

2011 - 2012: Lecturer in Archaeology (fixed-term), Cardiff University

2010-2011: Commerical archaeology

2002-2010: BA, MA and PhD in archaeology, Cardiff University

Honours and awards

NEIF (National Environmental Isotope Facility) Radiocarbon Peer Review Panel: 2024-present 

Fellow of the Higher Education Academy: 2021-present

AHRC Peer Review College (Academic): 2020-present

Elected Fellow of the Society of Antiquaries of London: 2019

Elected member of the Sachsensymposion: 2016

Research Associate at the Dept. of Continuing Education University of Oxford: 2020-present 


Professional memberships

Chartered Institute of Archaeologists: Associate

Speaking engagements

2024 Prosiect Archaeoleg Tirwedd Castell Ffwl-y-mwncanlyniadau o'r cloddio yn 2023’ (‘The Fonmon Castle Landscape Archaeology Project – results from the 2023 excavation’). Presentation at Cardiff University Conference on Medieval Wales (with Dr Tudur Davies).  

2024 Hilltop Settlements and their Landscape Contexts in Late Antique Western Britain. Presentation at the Roman Archaeology Conference, held at UCL. 

2023 Hillforts and Hill-Top ‘Settlement’ in Late Antique southwest Britain: New Insights and Interpretations. Invited Lecture to the University of Exeter. 

2023 New Research on Two Elite Settlements in Early Medieval Wales: Dinas Powys and Longbury Bank. Presentation at Medieval Rural Settlement in Wales and South West England: Recent Research and New Perspective. Conference held at Cardiff University. 

2023 Fonmon Castle Landscape Archaeology Project: Results from the First Two Years of Survey and Excavation. Invited lecture to the Society of Antiquaries of London. 

2023 Reconsidering Hillforts in Late Antique Southern Britain: Fifty Years After Arthur’s Britain. Invited lecture to the Cardiff Archaeological Society. 

2023 Cae dan yr Eglwys and the royal estate at Llangors. Presentation at East and West in Early Medieval Europe and Beyond. Conference held at Cardiff University. 

2022      Caergwrle and the Emergent Eastern Contested Landscapes of the Eastern Marchlands of Wales, Early Medieval Wales Archaeology Research Group, Abergavenny (with Dr Charles Insley and Prof Keith Ray).  

2022 Plague, Climate and Faith in Early Medieval Western Britain: Investigating Narratives of Change, Early Medieval Wales Archaeology Research Group, Abergavenny (with Dr Rhiannon Comeau and Dr Anna Bloxham).  

2022 Pollen Analysis and Early Medieval Landscape in the Dinas Powys Environs, Early Medieval Wales Archaeology Research Group, Abergavenny (with Dr Tudur Davies and Prof Stephen Rippon). 

2022 Hillforts and Hilltop Settlement in Post-Roman Western Britain: Re-examining Function and Interpretation. Invited lecture, Gwynedd Archaeological Trust. 

2022 Late Antique Hillforts and Hilltop Settlement in the Dyrham Region. Presentation at Dyrham 577. Conference held by Newcastle University/University of St Andrews.  

Committees and reviewing

Society of Antiquaries of London, Council: 2024-present 

Chartered Institute for Archaeologists Cymru/Wales: Committee: 2024-present 

Medieval Settlement Research Group: Treasurer: 2017-present

Royal Archaeological Institute: Council member: 2018-2023

Archaeological Journal: Editorial Committee: 2020-present

Society for Medieval Archaeology: Council member: 2020-2023

Co-convener: Offa’s Dyke Collaboratory: 2022-present 


  • Late antique and early medieval archaeology, particularly Wales and western Britain;
  • Landscape archaeology;
  • Hillforts and defended settlements;
  • Cemeteries and churches;
  • Material culture.

Current supervision

Molly Johnson

Molly Johnson

Research student

Ioan McCarthy

Ioan McCarthy

Research student

Gemma Bond

Gemma Bond

Research student

Past projects

  • Buried in the Borderlands: An artefact typology and chronology for The Netherlands in the early medieval period on the basis of funerary archaeology
  • The Settlement of East and West Flegg, Norfolk:  An interdisciplinary study